Final answer:
The correct subtraction statement that equals three is option c) 8 - 5 = 3, following the fundamental rules of subtraction where subtraction can be treated as the addition of a negative number.
Step-by-step explanation:
The student has asked for help in determining which subtraction statement among the provided options is true when the numbers from 1-8 are written, and the result equals to three. The key is to find two numbers that, when subtracted, equal three. In this case, the correct subtraction is found in option c) 8 - 5 = 3, because if you subtract 5 from 8, the result is indeed 3. This is in accordance with the basic rules of subtraction, where you change the sign of the number being subtracted and then perform the operation as if it were addition, which is outlined in the reference information provided.