Which of the Following Is a Reason Why People Who

Which of the following is a reason why people who cohabit before marriage are more likely to get divorced?

A) Cohabitants tend to talk too much about their relationship.
B) Cohabitants put too much effort into their relationships.
C) Cohabitants are more likely to have drug and alcohol problems.
D) Cohabitants tend to spend too much time together.