Pick out the correct statements : <br> (a) Haemophilia is a ***-linked recessive disease. <br> (b) Down's syndrome is due to aneuploidy <br> (c) Phenylketonuria is an autosomal recessive gene disorder. <br> (d) Sickle cell anaemia is an X – linked recessive gene disorder.

Question

( A ) (a) and (d) are correct
( B ) (a), (c) and (d) are correct.
( C ) (a), (b) and (c) are correct.
( D ) (b) and (d) are correct.