ANSWER ASAP!!!!!!
Which of the following situations could be described by the equation y = 120 – 25x?

A) There are 120 people in the football stadium, and 25 more are entering each hour.
B) A plumber charges $25 for a house call and $120 per hour.
C) A teacher has 120 students. Her third period has 25 students.
D) There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute.