Aheterosexual couple living in the same household and raising children is defined as a(n) family

nuclear

Explanation:

The term “nuclear” comes from Latin “nux” which means nut. A nuclear family refers to a household that contains parents ( of both sexes - mother and father) and their children (adopted or their own). Their goal is to spend as much quality time together  as possible in  order  to maintain good family relationships. Conflicts rarely happen  in nuclear families as it is in their best interest to lead a peaceful life.

idk but found this on google

"the kansas-nebraska act allowed each territory to decide the issue of slavery on the basis of popular sovereignty. kansas with slavery would violate the missouri compromise, which had kept the union from falling apart for the last thirty-four years. the missouri compromise had prevented this from happening since 1820."

the 4th option is the answer