Which list contains only natural numbers?

Which list contains only natural numbers?

• A. 1, 2, 3, 4
• B. 0, 1, 2, 3
• C. -1, 0, 1
• D. 2, 3, 4, 5

Answer: (A)

Natural numbers are the counting numbers we use to “count” objects, typically listed as 1, 2, 3, 4, and so on. The list 1, 2, 3, 4 uses only numbers from that set, with none being zero or negative. That makes it a clean, straightforward example of a list containing only natural numbers. The other options mix in numbers outside that basic set for this convention—zero or negative values—so they don’t fit as clearly. The first four natural numbers are 1 through 4, which is why this list is the intended representation.

Natural numbers are the counting numbers we use to “count” objects, typically listed as 1, 2, 3, 4, and so on.

The list 1, 2, 3, 4 uses only numbers from that set, with none being zero or negative. That makes it a clean, straightforward example of a list containing only natural numbers.

The other options mix in numbers outside that basic set for this convention—zero or negative values—so they don’t fit as clearly. The first four natural numbers are 1 through 4, which is why this list is the intended representation.