In Governing Their American Empire After 1763, the New Problem

In governing their American empire after 1763, the new problem which faced the British was

A) colonial reluctance to expand into the Ohio River Valley.
B) greatly increased expenses of administering a far larger and more complex empire.
C) strong American support for a rudimentary colonial union expressed in the popular Albany Plan.
D) colonial resentment for the failure of the British to aid them during the French and Indian War.