Q. What does the `each_key` method do when called on a hash in Ruby?
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(A)
Iterates over each key-value pair in the hash
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(B)
Iterates over each key in the hash
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(C)
Iterates over each value in the hash
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(D)
None of the above
✅ Correct Answer: (B)
Iterates over each key in the hash