Black Lives Matter (BLM) Movement started on ___________?

Black Lives Matter (BLM) Movement started on ___________?

A.11 July 2013
B.12 July 2013
C.13 July 2013
D.15 July 2013

It was formed in 2013 as a response to sustained and increasingly visible violence against black communities, with the purpose of creating a united front and establishing a political platform.