In order to shoot the scene of a car falling off a cliff, the photography team used a model car with the actual scale of 125, and the cliff was replaced with a model with the scale of 125.

It can be considered that the motion of the car and the model car falling off the cliff is a free-falling motion, that is, the acceleration of the model car falling is the same as that of the real car falling.

According to h= 12gt2, the actual movement time of the car is: t = =2hg.

According to the h norm = =h25h, the solution is: t norm = 2h25g = 152hg,

So T-mode = = 15t. In order to make the falling effect of the model car realistic, the number of films shooting the falling of the model car should be the same as that shooting the falling of the real car.

Therefore, the number of films taken per 1s when shooting the model is five times that taken per 1s when shooting the real scene, so B is right and A, C and D are wrong.

Therefore, choose: B.