Which of the following describes integers?

Integers are defined as whole numbers that can be either positive or negative, including zero. This means they encompass all of the following: positive whole numbers (like 1, 2, 3), negative whole numbers (like -1, -2, -3), and the number zero itself. Integers do not include any fractions, decimal numbers, or any representation that isn't a full, whole number.

The other options refer to different concepts. For instance, numbers with decimal points represent fractions of integers or real numbers, but they do not fit the definition of integers. Symbols representing quantities could refer to a range of mathematical forms beyond integers, including variables or algebraic expressions. Sequences of characters suggest a categorization that is more aligned with text coding or language, rather than numerical values. Therefore, the description of integers as whole numbers, whether positive or negative, is the most accurate representation.