A calculated field must be built in the original data set

What tip would not be helpful for designing, developing, and publishing applications for Android tablet devices?

a. Make your application compatible with only Android 3.0 and lower. b. Use RelativeLayout to organize your user interfaces. c. Use relative dimension values such as dp instead of px. d. Use Nine-Patch Stretchable Graphics.

A subroutine begins with a(n) ____ statement.

A. Open B. Proc C. Start Sub D. Sub