Answer:
A. It provides more money because there are two salaries.
Step-by-step explanation:
Dual-income families refer to a household with both parents working. It is a dual-earner family because it receives two salaries, each from one marriage partner. The household has more disposable income because of the two salaries than a situation of only one partner working.
Dual-income households tend to have a better quality lifestyle and more luxuries due to the increased income.