Theo other answer is incorrect, the first blank is undulate and the second is oscillate
Undulate is to rise and fall like waves and oscillate is to swing back and forth.
C.) He is very studious and a bit of a perfectionist is the correct answer because though all of the other choices can be used to describe a character indirectly, the use of the adjective "studious" and the descriptive noun "perfectionist" allows us to determine the character's personality without any implication or analysis needed.
Answer:
the second one
Explanation:
He was stretched out on the sofa like a cat sunning itself
