Which criterion verifies that a number is divisible by 5?

To determine if a number is divisible by 5, the essential test is whether it ends in either 5 or 0. This rule stems from the structure of our base 10 numbering system. Specifically, any number that concludes with a 5 or a 0 can be evenly divided by 5 without leaving a remainder.

For instance, the numbers 15 and 20 can be divided by 5, resulting in whole numbers 3 and 4, respectively. Conversely, if a number ends in 2, 4, 6, 8, or 1, 3, 7, 9, it cannot be evenly divided by 5.

The other options do not fulfill the criteria for divisibility by 5; thus, they do not contribute to understanding this specific rule.