A narrow but tall cabin is falling freely near the earth's surface. Inside the cabin, two small stones A and B
are released from rest (relative to the cabin). Initially A is much above the centre of mass and B much below
the centre of mass of the cabin. A close observation of the motion of A and B will reveal that -
(A) both A and B continue to be exactly at rest relative to the cabin
(B) A moves slowly upward and B moves slowly downward relative to the cabin
(C) both A and B fall to the bottom of the cabin with constant acceleration due to gravity
(D) A and B move slightly towards each other vertically

• (A) both A and B continue to be exactly at rest relative to the cabin
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