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#### Decimal representation of a rational number cannot be :(A)Terminating (B)non-terminating (C)non-terminating repeating (D)non-terminating non-repeating

Solution.

Any number which can be represented in the form of p/q where q is not equal to zero is a rational number. So it is basically a fraction with non-zero denominator.
Examples: $4/5, 2/3, -6/7$
Terminating decimals have a finite number of digits after decimal point,
Examples: $1/2 = 0.5, 3/5 = 0.6$
Non terminating decimals are the ones which keep on continuing after decimal point.
Examples: $1/3 = 0.3333..., 5/11 = 0.454545....$
Recurring decimals are those non terminating decimals which have a particular pattern/sequence that keeps on repeating itself after the decimal point. They are also called repeating decimals.
Examples: $1/3 = 0.33333....., 4/11 = 0.363636....$
Non-Recurring decimals are those non terminating decimals which do not have a particular pattern/sequence after the decimal point. They are also called non repeating decimals.
Examples:
$\sqrt{2}=1.414213562373$
$\sqrt{3}=1.732050807568$
$\pi =3.14159265359$

So by the above definitions we can see that the decimal representation of a rational number cannot be non-terminating non repeating because decimal expansion of rational number is either terminating or non-terminating recurring (repeating).
Therefore option (D) is correct.