In a town whose population is 3,500, a disease creates an epidemic. The number N of people infected i days after the disease has begun is given by the function 3,500 N(t) = 1 +18.7 . e -0.6t Find the number infected after 12 days. O A. 3,455 O B. 3,452 O C. 3,450 O D. 3,454