A poetic device is a tool that serves different purposes in a poem. Some of them are ornamental, some enhance the meaning of the poem and others add to its rhyme and lyricism. The most common poetic devices are alliteration, repetition, metaphor, simile, personification, etc.
A Simile is a sentence used with like or as so your answer would be B.
Answer:
The open window and the landlady both show the creepy experience by the main character. Both add to the experience with imagery and (should I continue?)
Explanation: