Which sentence IS compound AND complex?
เลือกคำตอบเดียว
a. I used to be lonely until I got my pet cat, for now I am as content as can be.
b. A beautiful black buffalo strolls proudly, and the pretty yellow birds fly freely.
c. Even though I am exhausted, I will come to class and study.
d. I never talk or play on my phone while in class.
e. They love each other very much, yet I always see them arguing.