Robin Construction Company Began a Long-Term Contract in 2011

Robin Construction Company began a long-term contract in 2011.The contract price was $600,000.The estimated cost of the contract at the time it was begun was $450,000.The actual cost incurred in 2011 was $300,000.The contract was completed in 2012 and the cost incurred that year was $180,000.Under the percentage of completion method:

A) Robin should report $300,000 of income in 2011.
B) Robin should report a $30,000 loss in 2012.
C) Robin must pay interest (under the look-back method) on the overpayment of taxes in 2011.
D) Robin should report $60,000 profit on the contract in 2012.
E) Robin will receive interest (under the look-back method) on the overpayment of taxes in 2011.