B. Personification
Here's why:
A hyperbole is an exaggeration of something like: "It's hotter than the sun outside!"
A personification of something is when an object that is not human is given a human like action or personality, like: "The lightning danced across the sky."
A simile is a comparison of two alike things to make the imagery stronger, for example: "He's as sly as a fox."
An onomatopoeia is a word that makes a sound, for example: "Pow" or "bang".
So the best option for the sentence, "He could almost hear the outdoors calling to him," would be personification.
Hope this helps, good luck mate! :D
