I don't know for sure but I think the second one is an intensive pronoun
An Antonym would be sorrowful
Yes! you are giving a human quality to a nonhuman.
I don't think that you finished writing the question
Answer:
C “John Clark’s voice dropped almost to a whisper. ‘You’ll take the string of six horses to the ford at Plover’s Creek.’”
Explanation:
In this sentence he is whispering so this represents a secret.