问题：

[单选] How doTCP SYN attacks take advantage ofTCPto prevent new connections from being established to a host under attack？（）

A . These attacks send multiple FIN segments forcing TCP connection release.
B . These attacks fill up a hosts’ listen queue by failing to ACK partially openedTCPconnections.
C . These attacks take advantage of the hosts transmit backoff algorithm by sending jam signals to the host.
D . These attacks increment the ISN of each segment by a random number causing constant TCP retransmissions.
E . These attacks send TCP RST segments in response toconnection SYN+ACK segments forcing SYN retransmissions.