In △ EFG, FG=20, GE=17 , and EF=15. Which statement about the angles of △ EFG must be true?

A. m∠ F < m∠ G < m∠ E
B. m∠ F < m∠ E < m∠ G
C. m∠ E < m∠ F < m∠ G
D. m∠ E < m∠ G < m∠ F
E. m∠ G < m∠ F< m∠ E
F. m∠ G < m∠ E < m∠ F