Answer: a. True
Step-by-step explanation:
The transmission of pathogens from the mother to the fetus may occur through two sites of direct contact that is in between the maternal cells and fetal cells also called as the extravillous trophoblasts present in the human placenta.
The maternal endothelial and immune cells are connected with the trophoblast during the uterine implantation site and to the maternal blood that surrounds the syncytiotrophoblast.
Thus the pathogens from cats, sheep, pig may transfer to the child in utero and may produce severe symptoms during the child's growing age.