Part A:
 How many vehicles over 150 thousand kilometers were rented from Hertz in March?
 Part B:
 How many more vehicles were driven between 50 and 100 thousand kilometers than between 0 and 50 thousand kilometers?
 Part C:
 How many vehicles were driven less than 100 thousand kilometers?
 Part D:
 How many vehicles were driven at least 250 thousand kilometers?