Use the Following to Answer Question

Multiple Choice

Use the following to answer question:
-(Table: Production of Good Z and Good X in Urbanville) Use Table: Production of Good Z and Good X in Urbanville.This table shows the production possibility frontier for Urbanville.Suppose Urbanville is producing at combination F,what is the opportunity cost of a move to combination E?

A) 5 of Z
B) 20 of Z
C) 25 of X
D) 0 of X