Which method is used to define a route that handles GET requests in Express?app.get()app.fetch()app.retrieve()app.query()

1. ### Break Down the Problem

To answer the question, we need to identify which of the provided options is the method used in Express.js to define a route that specifically handles GET requests.

2. ### Relevant Concepts

In Express.js, routing allows the handling of various types of HTTP requests (GET, POST, etc.) to specific endpoints. The method typically used to create a handler for GET requests is app.get().

3. ### Analysis and Detail

Let’s analyze each of the provided options:

1. app.get(): This is the correct method for defining a route that responds to GET requests.
2. app.fetch(): This is not a standard method in Express.js.
3. app.retrieve(): This is also not a recognized method in Express.js.
4. app.query(): This is not a method for defining routes in Express.js.

4. ### Verify and Summarize

Upon reviewing the provided options, only app.get() is widely recognized as the method used to handle GET requests in Express.

Final Answer

The method used to define a route that handles GET requests in Express is app.get().