A particle is at rest as seen in a reference frame. Which statements are correct?

Select all that apply

• Option A

  The frame must be inertial

• Option B

  The resultant real force on particle must be zero

• Option C

  If the frame is inertial, resultant real force is zero

• Option D

  If the frame is non-inertial, a nonzero resultant real force may keep the particle at rest in that frame