The Price for a Product Is Given By $p = 4050 - 0.5 x ^ { 2 }$

Multiple Choice

The price for a product is given by $p = 4050 - 0.5 x ^ { 2 }$ be sold to give positive revenue?
, where x is the number of units sold. How many units must

A) $x < 8100 \text { units }$
B) $x > 90 \text { units }$
C) $0 \text { units } < x < 90 \text { units }$
D) $0 \text { units } < x < 45 \text { units }$