The correct sentence is:

"He is much stronger than you."

Explanation:

• "much stronger" is used to emphasize a greater degree of strength compared to "you."

Here’s why the other options are incorrect:

"very stronger": The word "stronger" is already a comparative form, so using "very" is incorrect.

"more stronger": The comparative form "stronger" already includes the idea of "more," so "more stronger" is grammatically incorrect.

"stronger": While "stronger" is correct, adding "much" provides additional emphasis, making "much stronger" a better choice for emphasis.

So, the most appropriate and grammatically correct choice is "much stronger."