Which of the following is true about the "use strict" mode in JavaScript?OptionsIt is automatically enabled in all JavaScript code.It enforces stricter parsing and error handling in JavaScript.It makes JavaScript more permissive and forgiving of errors.It allows the use of undeclared variables.

The correct answer is: "It enforces stricter parsing and error handling in JavaScript."

Here's why:

1. "use strict" is not automatically enabled in all JavaScript code. You have to manually add "use strict"; at the beginning of your script or function to enable it.

2. "use strict" does enforce stricter parsing and error handling in JavaScript. It helps catch common coding mistakes and "unsafe" actions such as using undeclared variables.

3. "use strict" does not make JavaScript more permissive and forgiving of errors. In fact, it does the opposite by throwing errors for actions that would otherwise be ignored in non-strict mode.

4. "use strict" does not allow the use of undeclared variables. In fact, one of the key features of strict mode is that it disallows the use of variables before they are declared.