The average of 10 numbers is calculated as 21. It is discovered later on that while calculating the average, one number namely 36 was wrongly read as 26. The correct average is?  Choose the correct choice:
A) 16
B) 18
C) 19
D) 22
E) 24

Rationale: "explanation : 10 * 21 + 36 – 26 = 220 = > 220 / 10 = 22 d )"
Answer: D