Read the section "Back Up: What's Blockchain?"
Select the sentence from the section that explains what blockchains do.
A
It records who bought what, where, when, and for how much.
B
They could be bitcoin, a type of digital money, or NFTs.
C
These are usually in a central location.
D
They are controlled by a company like Visa or a bank.
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Answer:
A) It records who bought what, where, when, and for how much.
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