HIRAM REVELS, THE FIRST BLACK MEMBER OF THE UNITED STATES SENATE, SERVED AS SENATOR FOR MISSISSIPPI, AN OFFICE ____ HE WAS ELECTED IN 1870
12. Hiram Revels, the first black member of the United States Senate, served as senator for Mississippi, an office
____ he was elected in 1870.
A. which
B. in which
C. and which
D. being which