Which of the following statements is/are correct with reference to the instant messaging app Signal?

Which of the following statements is/are correct with reference to the instant messaging app Signal?

A. It is a cross-platform centralized encrypted messaging service.

B. It can be used to make one-to-one and group voice and video calls.

C. Both A & B

D. None of these

Explanation:

Signal has tried to run a series of Instagram ads to show the amount of data the social media platform and its parent company Facebook collect about users and how it uses the data to push targeted ads. Signal is a cross-platform centralized encrypted messaging service developed by the Signal Technology Foundation and Signal Messenger LLC. It uses the Internet to send one-to-one and group messages, which can include files, voice notes, images and videos. It can also be used to make one-to-one and group voice and video calls.