Suppose There Are 100 Firms Each with a Short Run $\mathrm { Q } _ { \mathrm { S } } = - \frac { 1 } { 2 } + \frac { 1 } { 2 } \mathrm { P }$

Multiple Choice

Suppose there are 100 firms each with a short run total cost of STC = q² + q + 10,so that marginal cost is MC = 2q +1.The market supply curve is

A) QS = -50 + 50P
B) $\mathrm { Q } _ { \mathrm { S } } = - \frac { 1 } { 2 } + \frac { 1 } { 2 } \mathrm { P }$
C) QS = -100 + 100P
D) QS = -50 + 50q²