There are altogether fifty-four students in our class, _____ is a new comer from a faraway

  mountain village.

  A. the most diligent of who                                  B. but the most diligent of whom

  C. the most diligent of them                           D. of whom the most diligent

There are altogether fifty-four students in our class, _____ is a new comer from a faraway

  mountain village.

  A. the most diligent of who                                  B. but the most diligent of whom

  C. the most diligent of them                           D. of whom the most diligent

There are altogether fifty-four students in our class, _____ is a new comer from a faraway
mountain village.