Which of the following best describes the empty-nest syndrome?
(a) it refers to living alone after a divorce.
(b) it refers to the rise of one-parent families.
(c) it refers to the departure of grown children from the home.
(d) it refers to households where couples cannot biologically have children.

The correct answer is C. It refers to the departure of grown children from the home.

Explanation:

The "empty-nest syndrome" is a term used to refer to the feelings and experience of parents whose children departure from home usually because they have grown up and become independent or are leaving home to attend college or university. The empty-nest syndrome often implies feelings such as grief, stress, sadness or loneliness that can lead to depression although in most cases it just takes some time to parents to adjust to not living with their children. According to this, the option that describes empty-nest syndrome is "It refers to the departure of grown children from the home".

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.