What do the following lines mainly reveal about Winston Churchill (paragraph 8)?

But I take up my task with buoyancy and hope. I feel sure that our cause will not be suffered to fail among men. At this time I feel entitled to claim the aid of all, and I say, “come then, let us go forward together with our united strength.”
Answer choices for the above question

A. He will not go into war until he has unanimous support.

B. He has significant doubts over whether Great Britain will be able to defeat Germany.

C. He is so passionate about Great Britain’s cause that he assumes Parliament’s support is guaranteed.

D. He is so confident that he is practically taking Great Britain’s victory for granted.