The correct answer is:
4) you are going to get involved in
Explanation:
* Option 1: "with which you are going to be involved"
Grammatically correct but overly formal for most contexts. It’s not wrong, but it sounds stilted in everyday speech.
* Option 2: "that you are going to get involving in"
Incorrect. "Involving" is the wrong form; it should be "involved."
* Option 3: "which you are going to be involved"
Incorrect. It’s missing the necessary preposition "in" after "involved."
* Option 4: "you are going to get involved in"
This is both grammatically correct and natural. Ending a sentence with a preposition like "in" is common and perfectly acceptable in modern English, especially in informal or conversational contexts.