Who want to talk about stuff

Why did the pilgrimage churches undergo large scale building projects? a. to accommodate the rising number of visitors b. to provide a clearer path for communion c. to appear more like a cross d. none of the above

(i think my answer is a, am i correct? ) a pentagonal traffic sign is a sign. a. school crossing b. parking c. wrong way d. yield

The "untying of the plot" or the resolution of the play is the?