Mount Everest is not a person, so whom and who cannot be used.
The phrase that the blank spot is in needs a transition word to flow correctly. 'that' does not flow, as it would make this phrase grammatically incorrect.
The answer is B. which.
Answer:
Personification
Explanation:
The dress is said to have whispered. Dresses can not actually whisper, so it is personnification. Personification is taking an inanimate thing and giving it a human characteristic.