Which of the following statements is/are correct?
$(i)$ The endomembrane system includes plasma membrane,$ER$,Golgi complex,lysosomes and vacuoles.
$(ii)$ $ER$ helps in the transport of substances,synthesis of proteins,lipoproteins and glycogen.
$(iii)$ Ribosomes are involved in protein synthesis.
$(iv)$ Mitochondria help in oxidative phosphorylation and generation of $ATP$.

• A
  $(ii), (iii)$ and $(iv)$
• B
  $(i)$ only
• C
  $(ii)$ only
• D
  $(iii)$ only