Whenever you make a payment or transaction in the Bitcoin system, you can optionally include a small transaction fee that it will go to the miner of whatever block includes that payment. The reason isGroup of answer choicesto incentivize miners to include your payment into the next blockto make it easier for miners to mix your payment with other payments with no transaction feesto expedite the mining process and ensure that the block will be created in $10$ minsto lower the threshold or target level of the nonce