The data transmission error is:
a. More in LAN as compared to WAN
b. More in WAN as compared to LAN
c. Same in LAN and WAN
d. None of the above

Hint: The transmission error means that there is resistance in the transmission of information. In WAN we use distance communication, which means there is more use of lengthy cables in WAN compared to LAN.

Complete step by step answer:
LAN stands for local area network and WAN stands for wide area network. In the case of LAN the connection is between The users which are sited very near to each other while in WAN users are very far due to which more transmission wires etc. are required and hence length increases will lead to increase in resistance and hence causes transmission errors.

As we know that resistance(R) of any material is proportional to the length (L) of the wire.
\[ \Rightarrow R \propto L\].
Resistance is the obstacles or hindrances on the path of the flow of any physical quantity and in this case it is the resistance in the flow of the current.

It means more the length, more will be the resistance and hence more will be the transmission errors. That’s why WAN suffers more transmission errors while such errors are less in LAN.

Hence, the correct answer is option (B).

Additional information:
A LAN, abbreviated from Local Area Network, is a network that covers a small geographical area such as homes, offices and groups of buildings. Whereas a WAN, abbreviated from Wide Area Network, is a network that covers larger geographical areas which can span the globe.

Note: Data transmission is mainly through wires hence more wires means more resistance in transmission which leads to transmission errors. More the lengths of the wires, more will be the resistance in transmission and more will be the errors.