Answer:
1. c. consumption
If US household decide to work fewer hours and take more leisure time, the component of GDP that is most likely to decrease is consumption and the households' income will decrease. Consumption in economics means the purchase of goods and services demanded by individuals in an economy and its occurs according to household income level.
2. The sentence that is required to know the growth rate of household consumption is Household consumption. Household consumption accounts for about 70% of the economy and grew at 4.2% annualized rate which is the biggest jump since the end of 2014.
Household consumption grew at an annualized rate of 4.2%, a jump compared to the recent past. This suggest household worked more hours and took less leisure time.