Which phrase best states the meaning of "pluck at his beard" as used in the excerpt?

(8) ...Had King Solomon been the janitor, with all his treasures piled up in the basement, Jim would have pulled out his watch every time he passed, just to see him pluck at his beard from envy

A.
to be amused
B.
to be annoyed
C.
to be approving
D.
to be accepting