Which of the following statements are correct ?
a. Melamine polymer is used in the manufacture of unbreakable crockery.
b. Enzymes are biocatalysts.
c. DNA fingerprinting is used for identification of criminals.
d. Tincture of iodine is an antiseptic.

A

a, b, c, d

B

a, b, c

C

b, c, d

D

b, c