Explanation:

- Option:3 Protoplasm: This is the correct answer. Protoplasm refers to the entire content of a living cell, including both the cytoplasm and the nucleus. It is the living part of the cell where life processes occur.

- Option:1 Mitochondria: These are the organelles known as the powerhouse of the cell, responsible for energy production but not inclusive of the whole cell contents.

- Option:2 Lysosomes: These are organelles involved in digestion within the cell, containing enzymes to break down waste materials, and not the entire cell content.

- Option:4 Cell membrane: This is the protective outer covering of the cell, regulating what enters and exits but not including the cell’s internal contents.