how did the radical republican reconstruction plan affect life in south carolina?

A. The law didn't give African Americans equal protection.
B. The state regained the right to decide local matters. *****
C. White males who participated in the war were permitted to hold public office.
D. White males who supported the war could not vote.

Is B right?

No, B is not the correct answer. The correct answer is A. The Radical Republican Reconstruction plan did not give African Americans equal protection under the law. To arrive at this answer, you can analyze the options given and eliminate the ones that are untrue or unrelated to the impact of the Reconstruction plan in South Carolina. Option B suggests that the state regained the right to decide local matters, but it does not directly address the impact on African Americans. Option C refers to white males who participated in the war, which is not relevant to the impact of the Reconstruction plan. Option D states that white males who supported the war could not vote, which is also not related to the impact of the Reconstruction plan. Therefore, by process of elimination, the correct answer is A.