Sentences are written in italics to indicate emphasis, to set off foreign words or phrases, or to denote titles of books, movies, or other works. Italics can also be used to indicate thoughts or inner dialogue in creative writing. Overall, italics help to visually distinguish certain words or phrases from the surrounding text and convey a specific meaning or tone to the reader. **

To write in italics on WhatsApp, you can simply add an underscore (_) before and after the text you want to italicize. For example, _this text will appear in italics_. When you send the message, the text between the underscores will be displayed in italics to the recipient. This formatting feature allows you to emphasize certain words or phrases in your messages. **

To write in italics in InDesign, you can select the text you want to italicize and then go to the Character panel. In the Character panel, you can click on the "Italic" button to apply the italics formatting to the selected text. Alternatively, you can use the keyboard shortcut Ctrl+Shift+I (Windows) or Command+Shift+I (Mac) to quickly switch the selected text to italics. **

To write in italics on Instagram, you can simply enclose the text you want to italicize between underscores (_) or asterisks (*). For example, typing _hello_ or *hello* will display as hello in italics on Instagram. This formatting trick can help your text stand out and add emphasis to your captions or comments. **

To write in italics in InDesign CS4, you can simply select the text you want to italicize and then go to the Character panel. In the Character panel, you will find an option to apply the italic style to the selected text. Alternatively, you can use the keyboard shortcut Ctrl+Shift+I (Windows) or Command+Shift+I (Mac) to quickly switch the selected text to italics. This will instantly change the appearance of the text to italicized. **

To write a word in bold italics, you can use HTML tags <b> and <i> together. For example, you would write <b><i>word</i></b> to make the word "word" appear in bold italics. Alternatively, you can use the markdown syntax by placing two asterisks and underscores around the word, like **_word_**. Both methods will result in the word appearing in bold italics. **

To write in italics on your phone, you can use the built-in formatting options in some messaging or note-taking apps. Alternatively, you can use special characters to indicate italics, such as placing an underscore (_) before and after the text you want to italicize. Another option is to use a third-party keyboard app that offers italic formatting as a feature. **

In C language, there is no built-in support for formatting text in italics like in word processing software. However, you can achieve a similar effect by using libraries like ncurses or ANSI escape codes to change the text style in the terminal. By using these libraries, you can set the text to be displayed in italics or any other desired style. Keep in mind that the appearance of the text may vary depending on the terminal being used. **