Question: help me with an Blockchain/Bitcoin question! In Bitcoin mining, which of the following can a malicious node do even though it may not be in

help me with an Blockchain/Bitcoin question!

In Bitcoin mining, which of the following can a malicious node do even though it may not be in its best interest? Create valid transactions originating from someone else s address Prevent a valid transaction from getting any confirmations forever Ignore the longest valid branch rule when proposing a new block Delete a transaction in the last block of the longest chain

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