Correct Answer: B
Explanation:
There are two adjective-adverb problems in this example. Most is an adjective, but here it modifies the adjective every, not the noun fan. The correct form should be the adverb almost, which can modify an adjective. Loud is another adjective, but here it modifies a verb (was cheering).The correct form is the adverb loudly.
Only B gets both right.