The dimensions of momentum are represented as

Explanation

Momentum is defined as the product of mass and velocity, so its dimensions are given by multiplying the dimensions of mass (M) and velocity (LT-1). Therefore, the dimension of momentum is [MLT-1]. Option A correctly represents these dimensions. Option B [ML2T-1] could refer to a different physical concept like angular momentum, Option C [MLT-2] represents force, and Option D [ML-1T] does not correspond to a recognized physical quantity.