The Profit Made When T Units Are Sold $t > 0$

Multiple Choice

The profit made when t units are sold, $t > 0$ is given by $P = t ^ { 2 } - 29 t + 204$ Determine the number of units to be sold in order for $\mathrm { P } < 0$ (a loss is taken) .

A) $t < 12 \text { units or } t > 17 \text { units }$
B) $t > 0$
C) $12 \text { units } < t < 17 \text { units }$
D) t=12 units or t=17 units