Question

Which is the most common drive letter where Windows stores most data and programs? A. B. C. E.

Answer 1

It's C I've done this test before

Answer 2

The most common drive letter where Windows stores most data and programs is "C".
In the beginning the computers used to have two floppy drives which were named as A and B. Later when hard drives added up to the technology, it was written as "C" because A and B were floppy drives already :)