Select the correct answer. Which of the following is a compound-complex sentence?

A.
The chef prepared a wonderful dinner that everyone at the restaurant enjoyed.
B.
Although college was expensive, Leonard was determined to get in, so he studied harder than ever.
C.
Ms. Spelling wants to go to the store, but it’s raining outside, and she doesn’t have an umbrella.
D.
The young dancer was so talented that hundreds of ballet schools invited her to teach.
E.
Although it was too late for breakfast, Annie made an omelet. But she burned it and had to order takeout food.