If a fraction p/q is in the simplified form, then it can be represented by terminating or non-terminating decimal.
If the denominator is 2, 5 or multiple of either 2 or 5, or both, then the fraction can represented by terminating decimal. Otherwise, the fraction can represented by non-terminating decimal.
Only in option A, the denominator is 5. So, only 8/5 an be represented by a terminating decimal.
Only 8/5 is terminating.
Therefore, the correct option is A.