[
  "Write the decimal as a fraction: 3 decimal places means denominator is 1000. Then simplify by finding the GCD.",
  "0.875 = 875/1000. Divide numerator and denominator by 125: 875 / 125 = 7, 1000 / 125 = 8. So 875/1000 = 7/8.",
  "0.875 = 7/8. Answer: option D."
]