There are two approaches to developing a web service, depending on whether you define the contract first or last.

The correct answer is B. FALSE.

There are three approaches to developing a web service:

1. Contract-first: In this approach, the contract is defined first, and then the implementation is developed to match the contract. This approach is often used when the contract is complex or when there are multiple stakeholders who need to agree on the contract.
2. Implementation-first: In this approach, the implementation is developed first, and then the contract is defined to match the implementation. This approach is often used when the implementation is simple or when there is only one stakeholder who needs to agree on the contract.
3. Iterative: In this approach, the contract and implementation are developed iteratively, with each iteration building on the previous one. This approach is often used when the contract or implementation is complex or when there are multiple stakeholders who need to agree on the contract.

The best approach to developing a web service depends on the specific situation. In general, the contract-first approach is the most reliable, but it can be more time-consuming. The implementation-first approach is the fastest, but it can be more error-prone. The iterative approach is a good compromise between the two.