Select the sentence with the correct capitalization.

A) The patient, who claimed to be an "ex-Christian" cried out, "praise God," once the pain medication kicked in.
B) The patient, who claimed to be an "Ex-Christian" cried out, "Praise God," once the pain medication kicked in.
C) The patient, who claimed to be an "ex-Christian" cried out, "Praise God," once the pain medication kicked in.

This one is difficult my answer is B

I disagree.