In Android system, an e-mail application that shows a list of new emails, composes an email, or reads an email is called (A) Service (B) Thread (C) Activity (D) Communication (E) None of the above.

Answer: (C) Activity

Explanation: An emails, also known as electronic mail is the mode of exchanging of the messaging or the information between two people or more via internet, so it is a kind of a service an all the factors that all present in the mail are known as activities. Activities in email include the actions like reading of the mail, opening of mail, sending mail, showing list of the new mails etc.