Answer:
b). Velocity
Step-by-step explanation:
Momentum is the product of mass and velocity of the object
so we will have

so here we know that momentum is the simple product of mass and velocity in which mass is a scalar quantity while velocity is a vector quantity
so here we can say that direction of momentum is same as the direction of the velocity of object as they both are vectors and they both need magnitude and direction both
so correct answer will be
b). Velocity