Frank studied for two M.A. degrees, and he earned a doctorate before he landed his current post, as a math instructor. Choose the selection in which the sentence is properly punctuated. Responses A NO CHANGENO CHANGE B Frank studied for two M.A. degrees, and he earned a doctorate before he landed his current post as a math instructor.Frank studied for two M.A. degrees, and he earned a doctorate before he landed his current post as a math instructor. C Frank studied for two M.A. degrees and he earned a doctorate before, he landed his current post, as a math instructor.Frank studied for two M.A. degrees and he earned a doctorate before, he landed his current post, as a math instructor. D Frank studied for two M.A. degrees, and he earned a doctorate before he landed his current post; as a math instructor.
