Answer:
Grandmother hypothesis
Explanation:
Grandmother hypothesis states that a woman with a living grandmother in close proximity will tend to have more children and mortality of the children will be reduced because of the help that will be rendered by the grandmother.
A Simon Chapman, a student at the University of Turku in Finland also supports this hypothesis, He reported that having a grandmother age 50 to 75 increased a toddler's chance of surviving from age 2 to 5 by 30 percent.
