Angela is writing a story about a "typical american family." she researches the work lives of the statistically typical family and concludes that her story will feature: a husband, wife, and live-in grandparents who all work. a husband who is the main provider. a husband and wife who both work. a single mother who is the main provider.

The correct answer is a husband and wife who both work.
In contemporary America, a typical family consists of parents who are both employed and can provide for their family members. Traditionally, in the past, the father used to be the sole provider for the family, but nowadays the roles have changed, so both the husband and the wife can work.