To take the AP Calculus test or not to take the AP Calculus test?

I have had straight A's all year and my lowest quiz score was an 80%. I have three other exams to study for and really need to choose to not take one for the sake of time and proper preparation. Should this be the one I drop? I haven't decided between a math and an English major and need a four or higher on the exam for it to matter. Thanks.