Awriter should hyphenate a compound modifier that a. contains an adverb ending in -ly. b. comes after the noun it modifies. c. comes before the noun it modifies. d. contains an adjective ending in -ive.

Use a hyphenated compound modifier that comes before the noun it modifies. DO NOT USE A HYPHEN in a compound modifier that comes after the noun it modifies or in a compound modifier that includes an adverb ending in LY. (ex: Hyphen needed in "She is a well-known author") (NO Hyphen is needed if the phrase is "the author is well known")

so A

Context clues are clues that can be found in the text around the word in question. An example: 
Let's say we have a marble. If we compare the marble to a baseball in one sentence, and then describe the marble as minuscule in the next sentence, it can be concluded that the marble is smaller than the baseball, and that minuscule means small.
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