A software is termed open source software if

AThe developer company is open 24 by 7

BIts source code is available to share, study and modify ✓ Correct

CIt can be downloaded from the internet

DIt is available free of cost

Correct answer: (B) Its source code is available to share, study and modify

Explanation

Software is open source when its source code is made available for anyone to share, study and modify.

The developer company keeping long working hours has nothing to do with the licensing of the code.

Being downloadable from the internet does not make software open source, since closed programs are downloadable too.

Being free of cost is also not the test, because open source can be sold and free software can stay closed.

The defining feature is open access to the human readable source with the right to change and redistribute it.

Licences like the GPL formalise these freedoms and require shared modifications to stay open.

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