Solve the Problem $\mathrm { t }$ Units Is $\mathrm { C } = 4 \mathrm { t } ^ { 2 } + 8 \mathrm { t }$

Multiple Choice

Solve the problem.
-The cost of producing $\mathrm { t }$ units is $\mathrm { C } = 4 \mathrm { t } ^ { 2 } + 8 \mathrm { t }$ , and the revenue generated from sales is $\mathrm { R } = 5 \mathrm { t } ^ { 2 } + \mathrm { t }$ . Determine the number of units to be sold in order to generate a profit.

A) $t > 9$
B) $t > 0$
C) $t > 7$
D) $t > 8$