Read the following sentences.

Heather always gets sick when she eats cheese. She ordered a cheeseburger for lunch.

Which of the following revisions is a correctly written complex sentence that shows a relationship between the two ideas?

A
Even though Heather always gets sick when she eats cheese, she ordered a cheeseburger for lunch.

B
Heather always gets sick when she eats cheese, she loves lunch.

C
Heather always gets sick when she eats cheese.

D
Heather ordered a cheeseburger for lunch, she enjoys the circus.