Which is a compound sentence?
a) nathan's favorite game is word now, in which you have to guess words letter by letter.
b) chloe loves to do research about dinosaurs, and she has a large dinosaur collection.
c) because jerome spent the day lying on the couch, he felt he has wasted it.
d) katie loves to hike in the woods, especially in the summertime.

The compound sentence is going to be choice: B. Chloe loves to do research about dinosaurs, and she has a large dinosaur collection.  It can be changed to either Chloe loves to do research about dinosaurs; she has a large dinosaur collection. - or- Chloe loves to do research about dinosaurs. She has a large dinosaur collection.  Hope that answers your question.

My answer is b but i dont know if im right