B

Step 1: Consider the scenario where a car is turning while moving at a high velocity. When a car turns, it needs a force to keep it on a curved path.
Step 2: The force required to keep the car moving in a curve is known as the centripetal force, which acts towards the center of the curve. However, from the perspective of an observer inside the car, a force seems to push them outward.
Step 3: This apparent outward force is referred to as the centrifugal force. It is important to note that centrifugal force is not a real force acting in the traditional sense; rather, it is a perceived effect due to inertia in a rotating reference frame.
Step 4: Gravitational force does act on the car but does not produce the outward effect that is felt by the passengers.
Conclusion: Therefore, the force that acts outwardly on the car and its occupants during a turn is the centrifugal force.
Thus, the correct option is B.