Pick out the word most similar in meaning NAIVE

Key idea: "Naive" means lacking experience, sophistication, or judgment; it often implies being innocent, simple-minded, or unsophisticated.

Best match: straightforward — this word can mean simple or uncomplicated, and in the sense of being innocent or lacking sophistication it is the closest match to "naive" among the given choices.

Why the other choices are not correct:

• spotless: means very clean or free from stains; unrelated to being inexperienced or innocent.

• subtle: means delicate or not obvious; often the opposite of naive, which implies a lack of subtlety.

• smart: means clever or well-informed; this contrasts with being naive.