According to Facebook how many users Accounts are affected by security breach in Sept 2018?

Question

Accepted Answer

50 Million. B is correct because Facebook reported that 50 million accounts were affected by the security breach in September 2018. A is incorrect because the number was not 40 Million according to the report. C is incorrect because the figure provided was not 60 Million. D is incorrect because the actual number was not 70 Million.