Answer:
The correct answer would be, Interracial Marriage.
Explanation:
Interracial Marriages are the marriages that take place between a man and a woman who are from different races or ethnic groups. For Example, the man could be African, and woman could be Asian, man could be Chinese and Woman can be Lebanese, etc. So when people from different races or ethnic groups marry each other, the marriage is called the interracial marriage. The children from these parents are called the biracial children, who belongs to two races. So in this question, Monique and Cindy have biracial children which means they had interracial marriage.