Answer:
open source software
Explanation:
A software that is free and whose code can be accessed and potentially modified by anyone is referred to as an open source software. The license used by the developer of an open source software grants all users the permission to use, distribute and modify the software at any time.
Some examples of an open source software are Firefox, gimp, OpenOffice etc.
Answer:
Optometrist
Explanation:
Optometrists are healthcare professionals who provide primary vision care ranging from sight testing and correction to the diagnosis, treatment, and management of vision changes. An optometrist is not a medical doctor.
Answer: All of the above is the answer
