Antony:
he was my friend, faithful and just to me:
but brutus says he was ambitious;
and brutus is an honourable man.
he hath brought many captives home to rome,
whose ransoms did the general coffers fill:
did this in caesar seem ambitious?
when that the poor have cried, caesar hath wept:
ambition should be made of sterner stuff:
yet brutus says he was ambitious;
and brutus is an honourable man.
you all did see that on the lupercal
i thrice presented him a kingly crown,
which he did thrice refuse: was this ambition?
yet brutus says he was ambitious;
and, sure, he is an honourable man.

william shakespeare, the tragedy of julius caesar

what phrase from this passage of julius caesar the audience understand that brutus is not trustworthy?
a. "whose ransoms did the general coffers fill: "
b. "he was my friend, faithful and just to me: "
c. "and brutus is an honourable man."
d. "when that the poor have cried, caesar hath wept: "