Answer: B. I love to eat chocolate covered pretzels.
Explanation: a hyphen is a punctuation mark used to join words to indicate that they have a combined meaning or that they are linked in the grammar of a sentence, to indicate the division of a word at the end of a line, or to indicate a missing element. One of the most common uses of hyphens is to join two or more adjectives that are modifying the same noun, this is the case of sentence B, the adjectives "chocolate" and "covered" are modifying the noun "pretzels" so, to avoid misunderstandings, we should add a hyphen between them: I love to eat chocolate-covered pretzels.
