Why Did the DPJ in a Compromise with the LDP

Multiple Choice

Why did the DPJ in a compromise with the LDP agree to double the consumption tax in 2011/2012?

A) To pay off the national debt which expanded during the Lehman Shock
B) To provide funds for new nuclear power stations
C) To cover the costs of Japan's recovery from 3/11 without increasing government debt
D) To expand investment in infrastructure