Why are many Central Americans undernourished?

Explanation:

Causes of Malnutrition

Lack of access to nutritious food combined with the high energy demands of the mother's daily physical labor, and nutrition needs of frequent pregnancies and breastfeeding put expectant and new mothers, along with their children, at risk of malnutrition.

The answer is activity level.

Explanation:

This trait refers to the level of phyisical energy demonstrated in a child's behaviour. A child with high activity levels might find it difficult to remain seated; instead, they enjoy activities that involve movement.

High levels of activity can be benefitial when taken in the right direction, such as playing sports.