The life expectancy (in years) of a certain brand of clock radio is a continuous random variable with the probability density function below.F(X)= {2/(x + 2)²1x200, otherwise(A) Find the probability that a randomly selected clock lasts at most 4 years.(B) Find the probability that a randomly selected clock radio lasts from 4 to 10 years.(C) Graph y=f(x) for [0, 10] and show the shaded region for part (A).