How are tone and the meaning of words related?

a. The tone of a passage can only be determined if an author uses positive words.
b. The tone is based on word choice, so the meaning of words explain the ways the author feels about a topic or subject.
c. The tone of a passage can only be determined if an author uses negative words.
d. The word choice is based on tone, so the tone explains the ways the author feels about the meaning of words.

Question

How are tone and the meaning of words related?

a. The tone of a passage can only be determined if an author uses positive words.
b. The tone is based on word choice, so the meaning of words explain the ways the author feels about a topic or subject.
c. The tone of a passage can only be determined if an author uses negative words.
d. The word choice is based on tone, so the tone explains the ways the author feels about the meaning of words.

anonymous · Answer

not sure if it is b or d