Which of the following is an example of environmental deprivation that can affect a child's intellectual development?

Lack of cognitive stimulation is a form of environmental deprivation that significantly impacts a child's intellectual development. Children thrive in environments rich in sensory experiences, interactions, and learning opportunities. When they are not exposed to stimulating activities, such as reading, problem-solving, and social engagement, their cognitive development can be stunted. This is particularly critical during early childhood when the brain is highly receptive to learning and development.

In contrast, the other options—Fragile X Syndrome, Congenital hypothyroidism, and Prader-Willi Syndrome—are genetic or medical conditions that can lead to developmental delays or intellectual disabilities but do not stem from an environmental lack of stimulation. These conditions often require medical interventions and support, whereas environmental deprivation specifically refers to the absence of suitable stimulation and enrichment in a child's surroundings, which is crucial for healthy cognitive development.