c. Which of the following sets of equations could trace the circle x² + y² = a² three times clockwise, starting at (0, -a)? OA. x= - asin t, y = -acos t, 0≤t≤6 OB. x = -a cos t, y = asin t, 0≤t≤8 O c. x=asin t, y=a cos t, Ost≤4 O D. x = -asin t, y = - acos t, Ost≤2 d. Which of the following sets of equations could trace the circle x² + y² = a² three times counterclockwise, starting at (0, – a)? OA X=-a cos t, y = -asin t, 0st≤8 OB. x=asin t, y = - acos t, 0≤t<≤6x OC. x=asin t, y = - acos t, Ost≤2 OD. X=-a cos t, y = - asin t, 0≤t≤4x

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