Which code segment should you use?

You are implementing a method named ProcessFile that retrieves data files from web
servers and FTP servers. The ProcessFile () method has the following method signature:
Public void ProcessFile(Guid dataFileld, string dataFileUri)
Each time the ProcessFile() method is called, it must retrieve a unique data file and then
save the data file to disk.

You need to complete the implementation of the ProcessFile() method. Which code segment
should you use?

A.
Option A

B.
Option B

C.
Option C

D.
Option D

Explanation:
* WebRequest.Create Method (Uri)
Initializes a new WebRequest instance for the specified URI scheme.
* Example:

1. To request data from a host server
Create a WebRequest instance by calling Create with the URI of the resource.
C#
WebRequest request = WebRequest.Create(“http://www.contoso.com/”);
2. Set any property values that you need in the WebRequest. For example, to enable
authentication, set the Credentials property to an instance of the NetworkCredential class.
C#
request.Credentials = CredentialCache.DefaultCredentials;
3. To send the request to the server, call GetResponse. The actual type of the returned
WebResponse object is determined by the scheme of the requested URI.
C#
WebResponse response = request.GetResponse();
4. To get the stream containing response data sent by the server, use the
GetResponseStream method of the WebResponse.
C#
Stream dataStream = response.GetResponseStream ();