Symbols: Q = Number of Workers Demanded; W = Wage

Symbols: Q = number of workers demanded; W = wage rate; and VTP = value of the cumulative total product (output) of the particular number of workers. Assumptions: (1) The current wage in Zinnia is $18, and the current wage in Marigold is $14; (2) full employment exists in both countries. If migration is costless and unimpeded, the wage in both countries will equalize at

A) $16.
B) $18.
C) $20.
D) $14.