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 students at lincoln high eat pizza at its lunchtime. [4] the school plans to start offering healthier options like salads and fruit as an alternative. what is the cause of the agreement error in sentence 3?
a. gender
b. number
c. person
d. antecedent