For extended or extended named ACLs, it is recommended to have a location as close to the source traffic as possible. This helps in filtering the traffic early and reduces the load on the network further downstream. So, C option is correct.
8. A gas treatment apparatus according to claim 7, wherein the nitrous oxide-containing gas is introduced into a heat exchanger and then allowed to flow through said gas flow channel and a decomposition reactor, and discharged after being again circulated through the heat exchanger. 9. A gas...