To be said as constant, velocity must be constant in both value and direction. In this case the value is constant (that is the constant speed) but direction is changing, so it has changing velocity. The direction changed by centripetal acceleration, that is acceleration toward the center.
The centripetal acceleration is constant since the speed is constant. Then the right answer is B: 'The car has changing velocity but constant acceleration.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.