Albert is 2 times Mary’s age and 4 times as old as Betty. Mary is 22 years younger than Albert. How old is Betty?  Select the correct option.
A) 8  B) 9  C) 11  D) 15  E) 18

Rationale: "a = 2 m = m + 22 m = 22 a = 44 a = 4 b , and so b = 11 the answer is c ."
Answer: C