The GREATEST advantage of rapid application development (RAD) over the traditional system development life cycle (SDLC) is that it:

The GREATEST advantage of rapid application development (RAD) over the traditional system development life cycle (SDLC) is that it:

A.
facilitates user involvement.

B.
allows early testing of technical features.

C.
facilitates conversion to the new system.

D.
shortens the development time frame.

Explanation:
The greatest advantage of RAD is the shorter time frame for the development of a system. Choices A and B are true, but they are also true for the traditional systems development life cycle.
Choice C is not necessarily always true.