Unlike eutherians, both monotremes and marsupials are animal taxa groups that have some embryonic development outside the female uterus (Option b is correct).
Monotremes and marsupials are two different groups of mammals that exhibit singular features such as the development of offspring inside a pouch mother's body in marsupials.
In conclusion, unlike eutherians, both monotremes and marsupials are animal taxa groups that have some embryonic development outside the female uterus (Option b is correct).
Learn more about monotremes and marsupials here:
https://brainly.com/question/3584013
#SPJ1