Which meaning corresponds to "experimental"?

• A. Tenacious
• B. Thereby
• C. Tentative
• D. Text

Answer: (C)

The meaning being tested is how experimental can describe something as not final and still being tested. Experimental can refer to something based on experiments or trials, and it’s often used to describe ideas, plans, or results that are provisional and not yet settled. That sense matches the word “tentative,” which conveys uncertainty and a state of being subject to further testing or confirmation. So, the best fit is the option that communicates that unsure, exploratory quality.

Other options don’t share that nuance: one means persistent or determined; another is a conjunction meaning as a result; and the last is a noun for written material.