The average monthly expenditure of a family was ₹18,600 during the first three months, ₹21,750 during the next four months and ₹22,840 during the last five months of a year. If the total savings during the year was ₹1,43,020, then the average monthly income(in ₹) of the family was:

A

32,225

B

34,115

C

35,333

D

33,335