Final answer:
The word 'lambent' means glowing softly or with a gentle light, and can also imply lucidity or clearness, thus the correct answer is both glowing and lucid.
Step-by-step explanation:
The word 'lambent' refers to a gentle or soft glow. This term is often used to describe something that has a light moving gently over a surface or glowing softly without a harsh glare. Essentially, 'lambent' signifies both a glowing quality and a sense of clarity or lucidity, as in 'lambent wit' or 'lambent light'.
Therefore, the correct answer to the question What is the meaning of the word 'lambent'? is option 3) Both A and B, as it incorporates both meanings of a soft glow and clearness.