Answer:
What is lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll?
Speaker compares the sunlight on the buildings to the light that shines on the countryside, and he seems surprised to feel more at peace in the bustling city than he has anywhere else.
A predicate nominative is a noun or a pronoun which follows the verb and describes the subject. In this case, the answer is D, "hour", because it immediately follows the verb, and as mentioned already, describes the subject, that is "the busiest time of day".
