Answer: A. Disposable income increased by $2,800 million in Year 2.
Explanation:
Disposable income is gotten when the personal current taxes has been deducted from the total personal income of an individual.
Total consumption in year 1 = $56,000 million
Total consumption in year 2 = $60,000 million.
The above shows that there was an increase in total consumption of:
= $60,000 million - $56,000 million
= $4,000 million
From the question, we can also deduce that there's a 0.7 (70/100) change in consumption as a result of a $1 change in disposable income.
Therefore, the increase in the disposable income in year 2 will be:
= $4,000 million × 0.7
= $2,800 million
Therefore, the correct option is A.