Sentence Correction (SC) | Garibaldi captured Rome in 1870, in the final step in Italian Reunific

Garibaldi captured Rome in 1870, in the final step in Italian Reunification, and as a consequence, the Vatican had ceased holding an army and had become a purely religious institution.

A. had ceased holding an army and had become
B. has ceased holding an army and has become
C. has ceased holding an army and becoming
D. ceased holding an army and becoming
E. ceased holding an army and became

---