Solve the Problem $$C ( t ) = \frac { 12 t + 4 } { 3 t ^ { 2 } + 2 }$$

Solve the problem.
-The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, $$C ( t ) = \frac { 12 t + 4 } { 3 t ^ { 2 } + 2 }$$ where t is the number of minutes after injection of the drug. When will the drug be at its
Highest concentration? Approximate your answer rounded to two decimal places.

A) t = 3.65 minutes after the injection is given
B) t = 4 minutes after the injection is given
C) t = 0.55 minutes after the injection is given
D) at the time of injection