Assertion (A): A protocol defines the set of rules that are applicable for data sharing and communication over a network.

Reasoning (R): Local Area Network (LAN) is an example of protocol.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

A is true but R is false.

Explanation
A protocol defines the set of rules and regulations applicable for data sharing and communication over a network. It is a formal description of message formats and the rules that devices must follow to exchange those messages. However, Local Area Network (LAN) is not an example of a protocol, rather, it is a type of computer network.