2) An internal reprogramming action: (select all that apply) a. Must be approved by the Undersecretary of Defense (Comptroller) (abbreviated USD (C)) b. May be used to redirect funds to a different purpose than authorized or appropriated by Congress c. May be used to increase the appropriated amount of an RDT&E program element by $10 million or more d. May be used to move funds to and from "transfer accounts" such as the Environmental Restoration, Army account