Answer:
The correct answer is option B.
Explanation:
Scalar quantity are those which only have magnitude and no direction.
For example: mass, time, distance etc.
Vector quantity are those which have both magnitude and direction.
For example: displacement , velocity etc.
From the given options, the quantity which is scalar is are a because it only has magnitude but no directions.
Where acceleration, velocity, displacement and force all are vector quantities.
Hence, the correct answer is option B.
