Which of the following is invalid filename? A. shutry B. TRY C. trial D. my .file E. None of the above

shutry
TRY
trial
my .file E. None of the above

The correct answer is: D. my .file

A filename can contain letters, numbers, and underscores. It cannot start with a number or a period. It cannot contain spaces or special characters such as ?, *, or |.

Option A, shutry, is a valid filename.

Option B, TRY, is a valid filename.

Option C, trial, is a valid filename.

Option D, my .file, is not a valid filename because it contains a period at the beginning.

Option E, None of the above, is not the correct answer because option D is an invalid filename.