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