-Refer to the Above Figure $\mathrm { MRP } _ { 0 }$

-Refer to the above figure.The firm is operating using $\mathrm { MRP } _ { 0 }$ .An increase in productivity has occurred.The relevant curve for the firm after the increase in productivity

A) is $\mathrm { MRP } _ { 0 }$ .
B) is $\text { MRP } 1$ .
C) is $\mathrm { MRP } _ { 2 }$ .
D) could be $\text { MRP } 1$ or
$\mathrm { MRP } _ { 2 }$ depending upon whether the firm was earning a positive profit.