A foil is a character whose traits are distinct or different from another character. Rainsford's character is highlighted by its difference from Zaroff's character. Zaroof is ruthless and cruel while Rainsford is compassionate and values life. You could say that their characters are the complete opposite.
Clean, neat. This answer makes the most sense for a workplace
The answer is give the letter to whoever answers the bell.
In subjunctive mood, a verb would be doubtful or un-factual.
i think the answer is C because the advertisement is trying to get you to help out & explains how it will be fun as well.