Answer:
Drive is only important when you work for Microsoft.
The text designed for editing and authoring code is source code editor.
A Source code editor is a text program designed specifically for editing source code of computer program by programmers. It may be a standalone application or it may be built into an (IDE) integrated development environment or web browser. source code editors are most fundamental programming tools as the fundamental job of programmers is to write and edit source code.
Darpa is an agency that emerges technologies for the military. I would say B. investigate technologies. This is logical because they are working with technologies investigating how, where, and why they need to emerge in the first place.
