Please choose the correct answer to the question: What role does the centromere play in cellular reproduction?

Answer1: It is the area where microtubules are formed. Answer2: It is the area where the nucleus is during cell division. Answer3: It is the area of alignment for the chromosomes. Answer4: It is the area of attachment for chromatids.

Answer format: answer1/answer2/answer3/answer4
Answer: answer4