The answer is C. Cognitive disabilities and birth defects.
Consuming alcohol during pregnancy can cause a condition in a fetus called fetal alcohol syndrome. This results in cognitive impairment and physical defects in the child. Such impairments and defects include learning disabilities, malformations of the skeletal system and major organ systems (specifically the heart and brain), inhibited growth, central nervous system complications, poor motor skills, mortality, and difficulty with learning, memory, social interaction, attention span, problem solving, speech and or hearing.
Explanation: Methods helps us with knowing the approach to the study and the method used for an experiment Results tell us what type of data was collected which will help us determine the type of research study.