What does it mean to concur someones opinion

i think that the best option for this question is

d)to persuade readers that a prince must eradicate the royal family of a conquered principality.

i hope this .

- "the die is cast; i have consented to return if we are not destroyed. thus are my hopes blasted by cowardice and indecision; i come back ignorant and disappointed. it requires more philosophy than i possess to bear this injustice with patience. i have lost my hopes of utility and glory; i have lost my friend."