Help needed to provide the answers with explanation.

Suggest suitable computer networking devices on the following scenarios. Provide simple explanations to your answers.

(a) For a far distance to connect 2 switches (b) For a laptop connecting to a network through Wi-Fi (c) For 4 computers having to connect to a network (d) For 1 standalone network connecting to another standalone network (e) For many computers connecting to a switch with inadequate number of ports