A hospital radiology department has the following activities:

 

Activity Number              Activity Description

1                                           Repair X-ray equipment

2                                           Taking X-ray with X-ray equipment

3                                           Wait time between patients

4                                           Repeating an X-ray because the X-ray technician forgot to

                                              load the film in the X-ray equipment

 

Which activity is a value-added activity?

A. Activity 2

B. Activity 1

C. Activity 3 and 4

D. Activity 2 and 3