This is true. You shouldn't split your infinitives unless necessary for grammatical reasons, while splitting them to add a modification in the middle creates a weird, awkward sentence.
Answer:
He spent his career teaching and mentoring disabled students, he encouraged Hispanics to go to college and vote. Lazo raised funds for a class-action lawsuit to win reparations for Japanese Americans interned during the war, which resulted in the Civil Liberties Act of 1988
Explanation:
I think your answer is C.
