I believe the answer would be c.
Well nothing is underlined but her is the only personal pronoun in this sentence so the antecedent would be carrie because it's her lunch
Upstart Crow is a British sitcom which premiered on 9 May 2016 at 10pm on BBC Two as part of the commemorations of the 400th anniversary of the death of William Shakespeare. Its title quotes "an upstart Crow, beautified with our feathers". The series makes a recurring joke on the Marlovian theory of Shakespeare.
1. hostess
2. testify
3. sacred
4. senior
5. erode
6. sterilize
7. despise
8. betray
9. leeway
10.tedious
11. estimate
12. lenient
13. embarrass
14. delegate
15. embassy