The Cost $C$ Of Producing $t$ Units Is Given By $C ( t ) = 3 t ^ { 2 } + 8 t$

Multiple Choice

The cost $C$ of producing $t$ units is given by $C ( t ) = 3 t ^ { 2 } + 8 t$ , and the revenue $R$ generated from selling $t$ units is given by $R ( t ) = 4 t ^ { 2 } + t$ . For what values of $t$ will there be a profit?

A) There will be a profit when more than 8 units are sold
B) There will be a profit when more than 9 units are sold.
C) There will be a profit when more than 7 units are sold.
D) There will be a profit when 0 units are sold.