Google's 2011 test questions suggest that software has no future

Now there is a house in Beijing, the price is 2 million, assuming that the house price rises 10% per year, a software engineer can make a fixed annual income of 400,000. If he wants to buy this house, no loan, no salary increase, no other income, no food, no drink and no consumption every year, then how many years will it take him to save enough money to buy this house?

A, five years

B) Seven years

C) 8 years

D) Nine years

E, can never afford it