The mode used to turn off the special meaning of backslash and treat it as an ordinary character is . . . . . . . .

Answer: Option C

This question is about how MySQL handles the backslash character (). Backslash is often used to escape special characters in SQL statements. For example, if you want to insert a single quote (') into a string, you would need to escape it using a backslash like this: 'This is a string with a single quote ' '.

The question asks about a mode that turns off the special meaning of the backslash character, so it is treated as a regular character instead of an escape character.

The correct answer is Option D: NO_BACKSLASH_ESCAPE. This mode tells MySQL to interpret the backslash literally, without any special meaning.

The other options are incorrect.

Let's break down why the other options are wrong:

* Option A: NO_ESCAPES_SLASH: This option does not exist in MySQL.
* Option B: NO_ESCAPES_BACKSLASH: This option does not exist in MySQL.
* Option C: NO_BACKSLASH_ESCAPES: This option is similar to Option D, but it's not the exact correct terminology used in MySQL.
In summary, the correct answer is Option D: NO_BACKSLASH_ESCAPE because it correctly identifies the mode that disables the special meaning of backslash in MySQL.