Final answer:
Consumption expenditure by households accounts for about 60-70% of the GDP in the United States, indicating it is a major driver of the economy. The correct answer is option (A).
Step-by-step explanation:
In the United States, the consumption expenditure by households is a significant part of the Gross Domestic Product (GDP), constituting approximately two-thirds of GDP over the past several decades. This would place the consumption percentage in the range of 60-70% of GDP. Consumption acts as a major driver of the economy and its trend has been relatively stable, showing a modest increase from the 1960s and 1970s onwards.
Therefore, the correct answer for the question is option A.