who was Jacob's great grand father?

It's c, ephraim black.
Because in the movie twilight, jacob says when him and Bella are talking on the beach.

c.Ephraim Black he was the alpha of his pack

C. Emphriam Black
It is Emphriam Black because in the movie he is the leader of the 狼 pack jacob even 说 it in the movie on the 海滩 to bella

ephraim black answer 'c'

Ephraim Black answer c!!!!!!!!!!!!!

I 爱情 JACOB!!!!!!!!!!!!! I have read all of the 图书 and watched all of the 电影院 even breaking dawn part two like 100 million times and I am only 12

ephraim black

C