Final answer:
The electronic messages from the options provided are emails and text messages. Letters are paper-based, and phone calls are not a form of written communication.
Step-by-step explanation:
Written communications are categorized into paper-based and electronic messages. Emails and text messages are electronic forms of communication. On the other hand, letters are considered paper-based, and phone calls, although not paper-based, are voice communications and not written, hence they do not fall under electronic messages in the context of written communication.
The electronic messages that apply to the student's question are:
- Emails
- Text messages
Emails are a crucial form of electronic communication for both personal and business interactions, enabling quick messaging and responses. Text messages, on the other hand, are popular for brief, instant communication often used in personal contexts or informal business communication. Both forms of electronic messaging have largely replaced traditional letter writing and are frequently chosen over phone calls for being less intrusive and more convenient.