In Annelida : 1. A closed circulatory system is present. 2. Neural system consists of paired ganglia 3. Paired ganglia connected by lateral nerves to a single ventral nerve cord. Regarding 1,2 and 3:

Question

( a ) 1 is correct but 2 and 3 are incorrect
( b ) 2 is incorrect but 1 and 3 are correct
( c ) 3 is incorrect but 1 and 2 are correct
( d ) 1 is incorrect but 2 and 3 are correct