The correct answer is D) They are caused when the Sun and the moon align and exert an additional gravitational pull.
Spring and neap tides are different from regular tides in that they are caused when the Sun and the moon align and exert an additional gravitational pull.
A spring tide is also known as a King Tide. It presents during the full moon and new moon. A neap tide appears seven days after the spring tide. It is a moment of moderate tides, This happens because the moon and the Sun are in direct angles to each other. This is the main difference between regular tides and spring and neap tides.
