The influence of how a mother’s nutrient intake may change gene expression to increase the infant’s development of obesity or chronic diseases later in life is referred to as .

The influence that maternal nutrition -the mother's intake of nutrients- has on the fetal gene expression, as well as its development and growth, is referred to as fetal programming, responsible for the predisposition to obesity or chronic diseases during its lifetime.

Explanation:

Both gene expression and fetal growth and development depend on three relevant factors:

The above factors can eventually induce changes in the metabolism of the developing fetus, which manages to adapt, but with consequences on the normal developmental pathway, which can trigger negative metabolic disturbances.

Fetal programming - also referred to as fetal metabolism programming - includes a number of factors that influence postnatal metabolic behavior, including susceptibility to obesity or chronic disease.

Learn more:

Fetal alcohol syndrome link

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.