Awnser:
A. the writing is clearly focused on the different types of plants
He could not find a hint; He could not find a sign; He could not find a trail; He could not find a clue.
Answer:
A. Skills were needed
Explanation:
Because we know arsenals mean "an array of resources available for a certain purpose" so when you read that paragraph to play hockey you need skills as well as talent to make it to the NHL. So A. is the best choice.
I’d say A. should learn how to age gracefully