You are developing an application that consumes an external web service that returns the latest stock rate.
The application has two methods:
The getResults() method makes an AJAX web servicerequest
The ShowRate() method displays the stock rate from the web service response
You need to ensure that the ShowRate() method always displays the latest stock rate.
Which code segment should you use?

A.
Option A

B.
Option B

C.
Option C

D.
Option D