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

• A. Only (i)
• B. Both (ii) and (iii)
• C. Both (i) and (iii)
• D. All of the above