What is the first phase in which a software program is usable enough to test? A.
Pre-alpha release
B.
Feature complete
C.
Alpha release
D.
Beta release

Alpha release

Explanation:

Pre-alpha refers to all activities performed during the software project before formal testing.

The alpha phase of the release life cycle is the first phase of software testing.

A feature complete version of a piece of software has all of its planned or primary features implemented but is not yet final due to bugs, performance or stability issues.

A Beta phase generally begins when the software is feature complete but likely to contain a number of known or unknown bugs.

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