A Smurf attack could be described using which of the following statements?

A Smurf attack could be described using which of the following statements?

Very large email attachments are sent to the victim$$s email address

Continually polling all possible Transmission Control Protocol and User Datagram Protocol ports to prevent legitimate connections

Sending numerous SYN packets to a server and not replying to the resultant SYN$/$ACK packets

An ICMP Type $8($ECHO$)$ packet with a spoofed source address is sent to the broadcast address of a large network; each member of that large network responds with an echo response packet to the spoofed source address, which floods the victim