A net that folds into a dodecahedron is composed of pentagons. If you decompose each pentagon into one triangle and one trapezoid, how many triangles and trapezoids are there?
a) 60 triangles and 0 trapezoids
b) 6 triangles and 6 trapezoids
c) 12 triangles and 12 trapezoids
d) 10 triangles and 10 trapezoids