Final answer:
Definitive means something that is clear, certain, and leaves no room for doubt. It is the opposite of flimsy, which means weak or lacking substance.
Step-by-step explanation:
Definitive
The correct answer is a. explicit. Definitive means something that is clear, certain, and leaves no room for doubt. It is the opposite of flimsy, which means weak or lacking substance. Justified means having a good reason or being morally right. Observable means able to be seen or noticed.
For example, if a question is asked and someone gives a definitive answer, it means they are giving a clear, explicit response that is not open to interpretation.
Learn more about Definitive meaning a. explicit