(Cannot say) Open-source software is of better quality than proprietary software
The Passage presents arguments both for and against this. The first paragraph highlights “quicker improvements” and says that open-source software is “more reliable” than propriety software. However, the second paragraph states controlling the source code ensures “higher levels of quality”
(Cannot say) Open-source software is developed collaboratively with propriety software
This idea was never discussed in the passage. The passage used collaboration in line 6 of the passage to explain the consistent modification of the open source software by different people.
(True) Anyone is allowed to modify open-source software
Very true – as seen in line 4 of the passage
(True) No charges for modifications
The passage states that “Any modifications made must also be distributed under the same terms as the original software”