Read the paragraph. [1] Studies have shown that kids who eat healthy food have more energy. [2] When students are more energized, they get better grades. [3] Still, half the Lincoln High students eat pizza at its lunchtime. [4] The school plans to start offering healthier options like salads and fruit as an alternative.

Which sentence contains a pronoun-antecedent error?
sentence 4
sentence 3
sentence 2
sentence 1

ANSWER: B