For each description below, select the correct white blood cell from the drop-down menu. include T and B cells that are used to produce antibodies against antigens and destroy pathogens that enter the body. engulf, destroy, and digest pathogens such as bacteria in the body.

According to the national health and safety standards: guidelines for out-of-home care, what is the proper adult-to-child ratio for children younger than one year? a. one adult to one child b. one adult to two children c. one adult to three children d. one adult to four children