which phrase from the first stanza of \the raven\ creates the most suspense by making a question appear in…

which phrase from the first stanza of \the raven\ creates the most suspense by making a question appear in the minds of the speaker and reader?\nonce upon a midnight dreary,\nwhile i pondered, weak and weary\nwhile i nodded, nearly napping\nsuddenly there came a tapping
Answer
Brief Explanations:
The first three phrases set a mood but don't pose a question. "Suddenly there came a tapping" makes the speaker and reader wonder what is making the noise, creating suspense.
Answer:
suddenly there came a tapping