Step-by-step explanation:
There are two types of physical quantities i.e. vector quantities and scalar quantities.
The type of quantities that have both magnitude as well as direction are called vectors. While, the quantities having only magnitude are called scalars.
For example, if we say the ball is moving with a speed of 5 m/s towards north. It shows both direction and magnitude. Here, 5 m/s shows magnitude of speed and North shows the direction.
Hence, the correct option is (b) "magnitude and direction".