The sentence given will have Option B, widower as the correct answer.
The given sentence will have the following nouns: the church, the widower and the committee. Where Option A, Church, is actually a common noun, defining a place of worship, Option C, committee is actually a collective noun describing a group of people.
Option B, widower, actually describes a male who lost his wife to death, thereby making it a masculine noun, and also the correct answer.