A terminating decimal from the following options is :
A. Natural number
B. A whole number
C. A rational number
D. An integer

Hint: In order to solve this problem you need to know that a terminating decimal is usually defined as a decimal number that contains a finite number of digits after the decimal point.

Complete step-by-step answer:

Terminating decimals are those numbers which come to an end after a few repetitions after decimal point and come to an end.

According to the definition of rational number, The decimal expansion of a rational number always either terminates after a finite number of digits or begins to repeat the same finite sequence of digits over and over.

So, the correct answer is option C.

Note: To solve this problem you need to know terminating decimal and rational numbers. Terminating decimals are those numbers which come to an end after a few repetitions after decimal point and come to an end. Example: 0.5, 2.456, 123.456, etc. are all examples of terminating decimals. In examples we can see all those are rational numbers.