Answer:
If there is some sort of error
Explanation:
If there is an error that is causing problems for clients that needs to be worked out still, rolling back allows customers to still do whatever they need while you look for a solution in the new version.
B because it uses the suns power to make electricity which doesn't do anything bad to the atmosphere.
it also goes with others but i am not so sure
Answer:
D. All are true.
Explanation:
All the given statements about CAD are true.
Answer:
The correct answer is B. Free software.
Explanation:
Free software is a term used for software that the holder can use, copy, read, modify and distribute with or without modification at will. Software that falls under this category includes software that is not protected by copyright laws or software that is licensed to be used in this way.
Motives for developing free software can be technical, economic or social. What is significant for developers is the desire to develop as producers of programs by learning from other producers. The desire to help others is also a major motive.