What is an advantage of using standards to develop and implement protocols?

Question:
What is an advantage of using standards to develop and implement protocols?

• A particular protocol can only be implemented by one manufacturer.
• Products from different manufacturers can interoperate successfully.
• Different manufacturers are free to apply different requirements when implementing a protocol.
• Standards provide flexibility for manufacturers to create devices that comply with unique requirements.

Explanation: Standards-based protocols enable products from different manufacturers to interoperate successfully. Standards-based protocols enable many manufacturers to implement that protocol. If different manufacturers implement different requirements within the same protocol, then their products will not be interoperable.

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