The 2007 crash of the us housing market was an example of a(n)

The 2007 crash of the US housing market was an example of an economic downturn.

An economic downturn constitutes one of the stages of the economic cycle and  occurs when the value of stocks, property, and commodities fall, productivity either increases more slowly or decreases, and the gross domestic product, commonly known as GDP shrinks, stands still or expands more slowly.

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do