Which of the following statement$(s)$ is/are correct regarding the excretory system of a cockroach?
$(i)$ Excretion is performed by Malpighian tubules.
$(ii)$ They absorb nitrogenous waste products and convert them into uric acid,which is excreted out through the hindgut.
$(iii)$ In addition,fat body,nephrocytes,and urecose glands also help in excretion.

• A
  Only $(i)$
• B
  Both $(ii)$ and $(iii)$
• C
  Both $(i)$ and $(iii)$
• D
  All of these