A can be used to create and test prototypes, develop interfaces, and simulate factory layouts and assembly lines, without investing in physical equipment and layouts.

The correct answer is "Cave automatic virtual environment ".

Explanation:

answer; i think/believe the correct answer is balance sheet;

to change your username, you must:

1) make sure what the username you want to change to is allowed in this community

2) contact a administrator (for example, jaysl)

3) through pm, tell the admin what you want to change to

4) if the username is allowed, it will be changed in a matter of seconds (minutes at most)

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