An integer is a whole number that can be positive, negative, or zero, but it does not include fractions or decimals.
Among the options provided:
- 4 is an integer.
- 34 is an integer.
- −3 (negative three) is an integer.
- 10.5 is not an integer because it is a decimal.
- 3 fourths (or ¾) is not an integer because it is a fraction.
So, all the integers from your options are 4, 34, and −3.