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Lets revise few concepts RAML which can help us to find the answer of this question.

URI Parameters

Lets have a look at below example.

/foos:

/{id}:

/name/{name}:

Here, the braces { } around property names define URI parameters. They represent placeholders in each URI and donot reference root-level RAML file properties as we saw above in the baseUri declaration. The added lines represent the resources /foos/{id} and /foos/name/{name}.

Query Parameters

Now we'll define a way to query the foos collection using query parameters.Note that query parameters are defined using the same syntax that we used above for data types:

/foos:

get:

description:ListallFoosmatching query criteria,ifprovided;

otherwise list allFoos

queryParameters:

name?:string

ownerName?:string

Based on the above information , below is the only option which defines storeid as uri parameter and department as query parameter.

/{storeId}:

get:

queryParameter:

department:

This helps CloudHub to dynamically allocates a port at deployment time.

MuleSoft Doc Ref

Correct answer is The city is #[payload.City]

Answer can get confused with the option #["The city is" ++ payload.City] But note that this option will not print the space between is and city name. This will print The city isPune

As dependency is not present in Mulesoft Maven repository, we need to install the dependency on computer's local Maven repository.