What does the following iptables rule accomplish:

What does the following iptables rule accomplish:

iptables A INPUT s 208.77.188.166 j DROP

A.
Forwards all incoming traffic to the host 208.77.188.166

B.
Accepts all traffic from 208.77.188.166

C.
Nothing, there is a syntax error

D.
Drops all traffic from 208.77.188.166