A jar of 220 marbles is divided equally among a group of marble-players today. If 2 people joined the group in the future, each person would receive 1 marble less. How many people are there in the group today?
Choose the correct choice from the following options.
A) 20
B) 21
C) 22
D) 23
E) 24

Rationale: 220 = 20 * 11 = 22 * 10 there are 20 people in the group today . the answer is a .
Answer: A