Q. What company was founded by Brain Acton and Jan Koum in 2009 which has more than 700 million active users?

A
Twitter
B
YouTube
C
WhatsApp
D
Facebook
Solution:

WhatsApp Messenger is a freeware and cross-platform messaging and Voice over IP service owned by Facebook. The application allows the sending of text messages and voice calls, as well as video calls, images and other media, documents, and user location.

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