Which recommendation would you make to this company about the user interface (UI)?

A company provides call center support for corporations world-wide. Each agent in the call
center can be assigned to multiple call center customers. All the company’s customers use
Windows based user interfaces and it has Just signed a new customer that uses a Java EE
back end and wants a rich interface. The company is developing a user interface for the
new customer with the following requirements: Customer service representatives (CSRs)
must be able to work with minimal training on the application. CSRs must be able to switch
between call center systems quickly. Screens must have a windows look and feel. 2000
agents spread across four locations must be able to use the system. Which
recommendation would you make to this company about the user interface (UI)?

A.
Write the UI using JSP and JSTL.

B.
Write the UI using JSPs with embedded script lets.

C.
Write the UI using AJAX, Accessing servlets directly.

D.
Write the UI using Java Swing and describe using JNLP.