Which code segment should you insert at line 02?

You are developing a Windows Store app. The app includes a handler for the
suggestionsrequested event.
The empty event handler is shown in the following code. (Line numbers are included for
reference only.)

The app must meet the following requirements:
+Provide an app-defined list of choices in the Search pane that responds to user query text changes.
+Provide suggested search topics only when the user enters a query that contains the text “products”.
You need to add code to meet the requirements.
Which code segment should you insert at line 02?

A.
Option A

B.
Option B

C.
Option C

D.
Option D