Sentence 1: He's always a nervous chap." 90 "His suggestion that his mother might have been poisoned accidentally by means of the tonic she was taking, that did not strike you as strange "hein?"

Sentence 2: He knows his mother was murdered.
OPTIONS:
(A). yes.
(B). it is not possible to tell.
(C). no.
Is this second sentence entailed by the first sentence?
(C).