Which of these testers check for cross-platform
compatibility?

A. lead tester
B. compatibility and format tester
C. production, Qa, and regression tester
D. focus tester

This question would take to long to answer

Below someones comment it should say reply

The best way she can do it is by doing the mentioned expirement but explaining it as a volcano eruption

Some responsibilities of having a checking account : write checks clearly and carefully.  keep an accurate record of checks written, so you can keep track of payments & deposits made to cover the check. maintain checks register with accuracy so as to avoid returned checks.