B - exocytosis.
Think of like materials EXitig the cell via EXocytosis
It's D ;) because uhm it's just D okay
D makes the most sense, the rest of them aren’t really logical.
Lean body mass <span>is the body mass attributed to non-fat body components, such as bone, muscle, and internal organs. In general, lean body mass is the mass of the body excluding the fat. It is important in fitness regimes. Most body builders want to maintain their lean body mass and decrease their body fat. </span>