A solution designer is creating a function to do image acquisition. One of the requirements is to use the image directory specified in the application configuration file. What is the BEST way to specify the location of the image directory in the function?
A. Use an action that employs the @APPPATH smart parameter to retrieve the directory.
B. Use an action that contains the actual directory structure, e.g. C:DatacapTravelDocsImage.
C. Place the function in a rule that associated with a DCO field that contains the location of the directory.
D. Create a custom variable using the Application Manager, then use an action that employs the @APPPATH smart parameter to specify the directory.