Answer:
The mother is fulfilling a set of expectations called a gender role.
Step-by-step explanation:
Gender roles refer to how each gender (male, female) is expected to act according to societal norms. This includes attitudes, conducts, likes, dislikes and way of dressing, amongst others.
In this case we can see that the mother is fulfilling the set of expectations from gender roles because it is accepted and generally understood by society that the woman is the one who has to take care of the children, before anything else.