From the above diagram, which phase of the Moon will result in the greatest difference between high and low tide? A. New Moon B. Last Quarter C. First Quarter D. Crescent Moon

Answer: A. New Moon
Explanation:
Spring Tides occur during the new moon or full moon phase. Spring tides are a result of greatest difference between high and low tides. This is because during new moon or full moon, the Earth, the moon and the Sun are aligned in a straight line which leads to maximum gravitational pull causing the maximum difference in high tidal waves and low tidal waves. From the given options, correct answer is option A. New Moon.