1999 AHSME Problems/Problem 14

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Four girls — Mary, Alina, Tina, and Hanna — sang songs in a concert as trios, with one girl sitting out each time. Hanna sang $7$ songs, which was more than any other girl, and Mary sang $4$ songs, which was fewer than any other girl. How many songs did these trios sing?

$\textbf{(A)}\ 7 \qquad  \textbf{(B)}\ 8 \qquad  \textbf{(C)}\ 9 \qquad  \textbf{(D)}\ 10 \qquad  \textbf{(E)}\ 11$