Select the letter of the pair of words that expresses a relationship

most like the relationship expressed by the following pair:

1. oneness: unity
a. workout : perspire
b. day : hour
c. premiere : debut
d. gardening : trowel
e. ring : wedding
(E)
2. stethoscope : doctor
a. manager : trainee
b. scientist : research
c. best-seller : publisher
d. tool : shovel
e. microphone : broadcaster
(E)
3. cubism : art
a. dictatorship : government
b. suit : vest
c. bravery : fear
d. modern : classical
e. painter : easel
(A)

I disagree with your first answer. Your other two answers are correct.

well, it's talking about how its whole and unity together so would it be day and hour?

I see oneness and unity as near synonyms. Hour and day are not the same.

would it be D gardening and trowel because it's joined together?

I still vote for the synonyms.

okay, so C premiere and debut because of there synonyms?

Kaanila