b. the height of the function is the same for each value of x.
Step-by-step explanation:
Probability Density Function denotes the probability values for continuous variable series.
Uniform Probability Density Function is a data of finite continuous variable series, having same (symmetric) probability distribution.
So, the probability values are same for all values of continuous variable x. So, height of function (denoting probability) is same for various values of x.