Which iRule will reject any connection originating from a 10.0.0.0/8 network?

A.
when CLIENT_ACCEPTED {
set remote_ip [IP::addr [IP::remote_addr] mask 8]
switch $remote_ip {
“10.0.0.0” { reject }
“11.0.0.0” { pool pool_http1}
default { pool http_pool }
}
}

B.
when CLIENT_ACCEPTED {
set remote_ip [IP::addr [IP::local_addr] mask 8]
switch $remote_ip {
“10.0.0.0” { reject }
“11.0.0.0” { pool pool_http1}
default { pool http_pool }
}
}

C.
when CLIENT_ACCEPTED {
set remote_ip [IP::addr [IP::client_addr] mask 255.0.0.0]
switch $remote_ip {
“10.0.0.0” { reject }
“11.0.0.0” { pool pool_http1}
default { pool http_pool }
}
}

D.
when CLIENT_ACCEPTED {
set remote_ip [IP::addr [IP::local_addr] mask 255.0.0.0]
switch $remote_ip {
“10.0.0.0” { reject }
“11.0.0.0” { pool pool_http1}
default { pool http_pool }
}
}