I believe the answer is A. Correct me if I am wrong
An intransitive verb is a type of a verb which doesn't need a direct object after it. As you can see, sentences A, B, and C have direct objects following a verb (A: balance and agility; B: sick or injured skiers; C: snowboards to the ski slopes) which means they all have transitive verbs.
Therefore, the correct answer is D. Winter storms arrive suddenly in the mountains.
The answer is D-T<span>he narrator and readers are surprised when they find out that Laurie is responsible for all of the bad things he said Charles did </span>
No electricity or its just too dark to see. Maybe their just being plain ignorant.