Final answer:
The correct answer choice is (B) program, or mentor program. The sentence is trying to present two options: either the high school after school program or the mentor program. To indicate that these are the two options being referred to, a comma and the word 'or' should be placed between them.
Step-by-step explanation:
The correct answer choice is (B) program, or mentor program.
The sentence is trying to present two options: either the high school after school program or the mentor program. To indicate that these are the two options being referred to, a comma and the word 'or' should be placed between them.