Lea and Rhea Met at the Beginning of Their Undergraduate

Lea and Rhea met at the beginning of their undergraduate degree and began dating shortly after.They have been together for the last 5 years.They have expressed their love for each other and desire to get married.Recently,they decided to take the next step in their relationship by moving in together.Lea and Rhea's decision provides an example of which trend regarding cohabitation?

A) Many couples fall into cohabitation even though they are no longer in healthy relationships.
B) Most couples decide to cohabit to save money and facilitate spending time together.
C) For many couples,cohabitation is a relationship commitment that is an alternative to getting married.
D) For many couples,cohabitation is a stage in their relationship that comes after dating but before the decision to marry.