-In the Above Figure,which Wage Rate Yields the Highest Union $\mathrm { W } _ { 1 }$

-In the above figure,which wage rate yields the highest union employment?

A) $\mathrm { W } _ { 1 }$
B) $\mathrm { W } _ { 2 }$
C) $\mathrm { W } _ { 3 }$
D) $\mathrm { W } _ { 2 }$ -
$\mathrm { W } _ { 1 }$