To ignore the comment directed to you
Answer:
It has led to a significant increase in new living arrangements such as B. cohabitation.
Explanation:
Cohabitation is the act of <em>living together without being married.</em> Generally it is more typical for couples to decide for this living arrangement before carrying out a formal bond such as marriage.
It is an arrangement both parties <em>agree on</em> and they often refer to individuals who have been in a long-term relationship or even permanent basis.