LeeAnn is bringing her sick cat Snowball in for a series of appointments at the veterinary clinic. Her total cost over the course of treatments will be $250 for test and medicine plus $45 per appointment. Write an equation to show the total cost, t, she will owe. A. 45a+250=t B. 250a+45=t C. 250-45a=t D. 45-250a=t