C. Binominal: near-synonyms
C1. You can pick and choose; it’s up to you. (have a wide choice)
C2. My English is progressing in leaps and bounds. (big jumps)
C3. It’s nice to have some peace and quiet. (peace/ calm)
C4. The doctor recommended some rest and recreation/ R and R. (relaxation)
C5. First and foremost, you must work hard. (first/ most importantly)
(Source: English Vocabulary in Use, Cambridge University Press)