Please choose the correct answer to the question: The average distance between Earth and the Sun is 149,600,000 kilometers. Which of the following is the correct scientific notation for this distance?

Answer1: 1.496 x 10^3 km Answer2: 1496 x 10^5 Answer3: 149.6 x 10^6 km Answer4: 1.496 x 10^8 km

Answer format: answer1/answer2/answer3/answer4