When did Twitter acquire the small password-security startup Mitro?
| Options: |
| A) June 31, 2014 B) July 31, 2014 C) July 21, 2014 D) July 31, 2015 |
| Answer : July 31, 2014 |
| Options: |
| A) June 31, 2014 B) July 31, 2014 C) July 21, 2014 D) July 31, 2015 |
| Answer : July 31, 2014 |