Final answer:
The decimal .3 can be described as a Terminating Decimal. In the case of .3, there are no digits after the decimal point, so it is a terminating decimal. So, option 4 is correct.
Step-by-step explanation:
The decimal .3 is read as "three-tenths." It consists of one digit after the decimal point, which is 3.
Since there are no more digits following the 3, it is a finite decimal. A decimal is considered terminating when it has a definite and finite number of digits after the decimal point.
In contrast, a repeating or circulating decimal would have a pattern of digits that repeats indefinitely.
For example, 0.333... is a repeating decimal because the digit 3 repeats infinitely.
However, this is not the case for .3, as it has a clear endpoint, making it a terminating decimal.
So, option 4 is correct.