Question

Which of the following groups of numbers represent integers?
Answer

All numbers except zero

Whole number, fractions, and decimals

Whole numbers and their inverses (negative numbers)

Fractions and decimals only

Answer 1

An integer is a number that can be written without a fractional or decimal component. For example, 21, 4, and −2048 are integers; 9.75, 5½, and √2 are not integers. The set of integers is a subset of the real numbers, and consists of the natural numbers (0, 1, 2, 3, ...) and the negatives of the non-zero natural numbers (−1, −2, −3, ...).

Therefore in your problem:

Whole numbers and their inverses (negative numbers)

Would be the correct answer