Remember that
Euler's formula state that: In a polyhedron, the number of vertices, minus the number of edges, plus the number of faces, is equal to two
so
V-E+F=2
the answer is option d
Verify each polyhedron
Rectangular prism
F=6, V=8, E=12
8-12+6=2
2=2 is ok
Triangular Pyramid
F=4, V=4, E=6
4-6+4=2
2=2 is ok
Pentagonal prism
F=7, V=10, E=15
10-15+7=2
2=2 is ok
TRiangular prism
F=5, V=6, E=9
6-9+5=2
2=2 is ok