Factor Out the Greatest Common Monomial Factor from the Polynomial $60 t ^ { 2 } - 75$

Multiple Choice

Factor out the greatest common monomial factor from the polynomial $60 t ^ { 2 } - 75$ .

A) $15 t ( 4 t - 75 )$
B) $75 \left( 60 t ^ { 2 } - 1 \right)$
C) $60 t ( t - 75 )$
D) $15 \left( 4 t ^ { 2 } - 5 \right)$
E) no common factor other than 1