This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Biochemistry
BMR is decreased in: 
Select and explain. 
A. Cold temperature, B. Hyperthyroidism, C. Exercise, D. Hypothyroidism
D: Hypothyroidism
Answer: D: Hypothyroidism 
Explanation: Ref: Multiple SourcesExplanation:"Both increase (Fever) and decrease (hypothermia) in body temperature increases basal metabolic rate. " Ref. HarperFactors affecting Basal Metabolic rate (BMR)Increased BMRDecreased BMR* Male sex* Children* Pregnancy* Thyroxine* Testosterone* Growth hormone* Fever* Hypothermia* Stress* Female sex ( due to more fat)* Old age-decrease in muscle mass* Sleep - upto 10 - 15% due to decreased lone of skeletal muscles and decreased activity of CNS* Malnutrition* Starvation