Margarita takes her son alejandro to a neighborhood home where he is cared for while she is working. this child-care arrangement is known as

The child care arrangement is known as  family child care
 family child care refers to an arrangement that put several children together within a certain establishment where they have a worker to take care of the children needs while the parents is out at their job. This type of arrangement usually had significantly lower cost compared to hiring a nanny.

B) .. change at different rates to different degrees