Answer the following question: Fact 1: Immunodeficiency occurs when the immune system is not working properly. Fact 2: Malnutrition , particularly with lack of protein , can cause acquired immunodeficiency. Given the two facts above, answer the question "What can cause the immune system to not work properly?" with the following options: - cigarettes - Malnutrition - burning coal - Healthy food - Exercise - Good health - Allergies - Pesticides
Answer:
Malnutrition