Use euler's formula to find the missing number vertices 22 edges 34 faces? a.10 b.12 c.14 d.16

Euler's formula is given by:
 C + V = A + 2
 Where,
 C = Number of faces
 V = Number of vertices
 A = Number of edges
 Substituting values we have:
 C + 22 = 34 + 2
 Clearing C we have:
 C = 34 + 2-22
 C = 14
 
 c.14