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Rabia

In C++, a pointer is

A. data type of an address variable
B. address of a variable
C. variable for storing addresses
D. constant value

What are UTXOs in a Bitcoin Blockchain?

A. These are actual currency that is sent to the receiver of a transaction
B. These are rewards for miners
C. These form the input and output for transactions
D. These are transaction output that has ben expended