Andrew, a math teacher, needs to choose a team to send to a math competition. \ Two of his best students, Maria and Nath

Andrew, a math teacher, needs to choose a team to send to a math competition. \ Two of his best students, Maria and Nathan, refuse to work together. If Andrew has twelve students to choose from, and he must choose either Maria or Nathan so that he sends a strong team, how many possible five-person teams can he send?

A. 120
B. 252
C. 420
D. 792
E. 1320

OA C

Source: Veritas Prep

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