w 'he drug concentration in the bloodstream t hours after injection is given approximately by C(t) = 4.352\

he drug concentration in the bloodstream t hours after injection is given approximately by C(t) = 4.35e- , A) What is the rate of change of concentration after 2 hours? After 5 hours? B) Graph C. (A) Select the correct choice below and fill in the answer box to complete your choice. O S ts 5, where C(t) is the concentration in milligrams per milliliter. (Type an integer or a decimal. Do not round until the final answer. Then round to the nearest hundredth as needed.) A. After 2 hours, the concentration is decreasing at the rate of mg/mL per hour. o B. After 2 hours, the concentration is increasing at the rate of mg/mL per hour. o O C. After 2 hours, the rate is neither increasing nor decreasing.