Please choose the correct answer to the question: A single prokaryotic cell can divide several times in an hour. Few eukaryotic cells can divide as quickly. Which of the following statements best explains this difference?

Answer1: Eukaryotic cells are smaller than prokaryotic cells. Answer2: Eukaryotic cells have less DNA than prokaryotic cells. Answer3: Eukaryotic cells have more cell walls than prokaryotic cells. Answer4: Eukaryotic cells are more structurally complex than prokaryotic cells.

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