What is the average of 120, 130, 140, 510, 520, 530, 1115, 1120, and 1125?	Choose the correct choice from the following options:
A) 419
B) 551
C) 601
D) 590
E) 721

Rationale: "add 120 , 130 , 140 , 510 , 520 , 530 , 1115 , 1120 , and 1125 grouping numbers together may quicken the addition sum = 5310 5310 / 9 = 590 . d"
Answer: D