The true statement is: "Spring tides are the highest, while neap tides are the lowest."
Explanation:
The range of difference in the level of water between high and low tide is always larger in spring tide.
Neap tides are the moderate tides. It does not have huge difference in higher and low tides because the bulging of the ocean ( by the sun) balances the bulge of the ocean caused by the moon.
This balance is not found in spring tides that is the main reason for spring tides to have the highest level for both higher and lower tides.
