Which of the following is the decimal equivalent to 2/7?

Hi, Mike! Just curious as to how you would best explain the following question:

Which of the following is the decimal equivalent to 2/7? (Note: A bar indicates a digit pattern that is repeated.)

A. 0. 285714 (all digits after decimal repeat: 0.285714285714…)
B. 0.28571428 (no repeating digits)
C. 0.28571428 (only digits 28 repeat: 0.285714282828…)
D. 0.2857142857 (no repeating digits)
E. 0.2857142857 (only digits 2857 repeat: 0.28571428572857…)

Thank you!