Each of the following sentences in this section has a blank space and is followed by four choices. Select the most appropriate choice to fill in the blank.
She has faced almost___________ difficulty in arranging the funds for the event.

Correct option is B

"Insurmountable" means too great to be overcome, fitting the context where the difficulty is described as significant. This adjective is chosen over others like "big" or "large," which do not convey the severity or the qualitative nature of the difficulty as precisely.