Which of the following words is closest in meaning to “Rational”?

Rational means based on reason; sensible.

• Correct answer - guided by reason: it has the same meaning as Rational.
• emotional: driven by feelings - wrong, it does not mean the same as Rational.
• foolish: lacking good sense - wrong, it does not mean the same as Rational.
• sincere: genuine - wrong, it does not mean the same as Rational.