Question

Thoreau recalls the afternoon rainstorms as fierce and intimidating.
A. True
B. False

Answer 1

False, because in his writings, Thoreau has this:

"Some of my pleasantest hours were during the long rainstorms... which confined me to the house for the afternoon.."

So from this you can reason that he saw these afternoon storms as enjoyable and pleasant to him.
Thus the answer is false.