The concentration of a drug in the body (in milligrams per milliliter) as a function of time (in hours) since ingestion is given by: C(t) = 20t . e-0.3t. The peak concentration of the drug (the GLOBAL MAXIMUM value) is closest to: Select one: O 13 mg/ml O 3 mg/ml O 51 mg/ml O 25 mg/ml O 15 mg/mlWhich of the following statements is false? Select one: O a. The function f(a ) has a global minimum on the interval -5