"[I]n Short the Ministry May Rely on It That Americans

"[I]n short the Ministry may rely on it that Americans will never be tax'd without their own consent that the cause of Boston the despotick Measures in respect to it I mean now is and ever will be considerd as the cause of America (not that we approve their cond[uc]t in destroyg the Tea) & that we shall not suffer ourselves to be sacrificed by piecemeal though god only knows what is to become of us,threatned as we are with so many hoverg evils as hang over us at present;having a cruel & blood thirsty Enemy upon our Backs,the Indians,between whom & our Frontier Inhabitants many Skirmishes have happend,& with who(m) a general War is inevitable whilst those from whom we have a right to Seek protection are endeavouring by every piece of Art & despotism to fix the Shackles of Slavry upon us." In his letter to George William Fairfax,why did George Washington bring up Indians?

A) To propose them as potential allies in the struggle for independence
B) To compare the plight of the American colonists to those of the Indians
C) To bemoan that Americans must fight Indians while also being unprotected and oppressed by Britain
D) To suggest that the Indians are in cahoots with the British