Final answer:
The detail that most clearly creates tension in 'The Monkey's Paw' is the fakir's warning about meddling with fate.
Step-by-step explanation:
The detail from 'The Monkey's Paw' that most clearly helps create tension is option B: A fakir warned that anyone who meddled with fate would be sorry. This detail introduces a sense of danger and foreshadows the negative consequences that come with meddling with fate. It adds suspense to the story and builds up the tension as the characters continue to use the monkey's paw despite the warning.
Learn more about Creating tension in a story