In of the implementation phase of the systems development life cycle (sdlc), as each module of a new system is converted, the corresponding part of an old system is retired.

a. parallel conversion
b. plunge conversion
c. pilot conversion
d. phased-in-phased-out conversion

Plunge conversion

Explanation:

plunge conversion in SDLC, stand for system development life cycle, is a conversion where main focus is on new system. In plunge conversion, old system is replaced by new system. it is less time consuming and cost effective.

The four main conversion strategy in SDlC are

1- Parallel conversion

2 - Plunge conversion

3 - Pilot conversion

4 - Phased conversion

haile selassie i was the emperor of ethiopia from 1930-1974