What did Mose Wright, the uncle of Emmett Till, do that was considered dangerous for a black man in Mississippi after the death of his nephew?

a. He organized a race mob to exact justice against the men who killed his nephew

b. Mose Wright refused to accept responsibility for possibly being an accessory to the murder of
Emmett Till

c. He testified against J.W. Milam and Roy Bryant, the two white men accused of murdering Till

d. Mose Wright physically confronted Milam and Bryant in an effort to prevent them from taking Till and killing him