Which of the following is an integer?

A. 9.75
B. √2
C. 2/3
D. 5

Answer

Correct Answer: D. 5 


Solution

An integer is a whole number that can be positive, negative, or zero, but it cannot be a fraction or a decimal.

Out of the options given, only D. 5 is an integer.

A. 9.75 is a decimal and not a whole number.

B. √2 is an irrational number and not a whole number.

C. 2/3 is a fraction and not a whole number.

Therefore, the answer is D. 5.

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