Question with options: can we draw the following hypothesis from the context? 

Context:

Sharon sent dismissal letters to Benny Elon and Avigdor Lieberman, who oppose his withdrawal plan, on Friday.

Hypothesis: On Friday,Sharon fired Benny Elon and Avigdor Lieberman.
pick from the following.
 (a). yes;
 (b). no;
A:
(a).