Please choose the correct answer to the question: Joel made some measurements and recorded this data: Sample 1 - 45 mL Sample 2 - 15 mL Sample 3 - 30 mL Sample 4 - 20 mL Which of these tools would most likely have been used to obtain these measurements?

Answer1: test tube Answer2: meter stick Answer3: spring scale Answer4: graduated cylinder

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