Given below are some characters of a cell organelle. Identify the correct organelle which shows all the characters described above. (i) It is a membrane bound space found in the cytoplasm. (ii) It is bound by a single membrane called tonoplast. (iii) It contains water, sap, excretory products and other materials, not useful to the cell. (iv) It has higher concentration of sap than the cytoplasm.

• A. Golgi apparatus
• B. Lysosomes
• C. Endoplasmic reticulum
• D. Vacuoles