Its between B and C for me because asking questions can be very helpful with note taking but highlighting important elements in her own way can be more helpful, I lean more towards C.
I belive its your pancreas or kidneys
Answer: Ligaments
Explanation: Lean body mass is simply everything that's is not fat. This includes your bones, organs, muscles, ligaments, tendons and fluids. So the answer to your question is Ligaments.