Im guessing its B, Because it just makes more sense! I went in there and read it aloud using both words (A and B) B made more sense. With an object being measured, such as a lemon, to make a quart of lemon juice, Id say you'd use the word number. Amount is not a word used for an object or measurement.
Yes it can be spread. Through the air and from one person to another
Majority means the greater number
Artistic license (also known as artistic licence, art licenselo, historical license, dramatic license, poetic license, narrative license, licentia poetica, or simply license) is a colloquial term, sometimes an euphemism, used to denote the distortion of fact, alteration of the conventions of grammar or language, or rewording of pre-existing text made by an artist in the name of art.