Answer: The answer is (iii) Either the decimal repeats or terminates.
Step-by-step explanation:
We are familiar with the theory of rational and irrational numbers.
When a rational number is converted to decimal form, then either the digits after the decimals repeats themselves or the decimal terminates.
For example, the fraction 10/3 = 3.333333 . . ., which is rational. Here digits are repeating. And the fraction 5/4=1.25, which terminates. These are the two decimal forms of rational numbers.
In the decimal form of an irrational number, digits after the decimal are non-repeating and non-recurring.
For example, √3 = 1.73205080757 . . .. This is the only decimal form of irrational numbers.
Thus, the correct option is (iii) Either the decimal repeats or terminates.