i have wathced the videos for these questions multiple times and cant find the answer please help.

1. Software as a Service, eliminates worries about HW ______ , operating systems or data loss.

https://www.youtube.com/watch?time_continue=36&v=aQeLOC3gx6Y

2. The benefit of having a single version of software, hardware and OS also _______ upgrades for developers and avoids them completely for end-users.

same video as first question

3. As apps developed with Service-Oriented Architecture principles are composed of interoperable services it is easy to customize new versions for a subset of users and easier to _______ from a _______ in design.

https://www.youtube.com/watch?time_continue=376&v=5wIW4RQKLoc

Thank you