C. The speaker uses evidence to support her point of view.
<span>Olympic snowboarders' determination drives them through the rigorous training required to remain competitive in the sport.</span>
Answer:
Blockchain has the potential to grow to be a bedrock of the worldwide record-keeping systems, but was launched just 10 years ago. It was created by the unknown persons behind the online cash currency bitcoin, under the pseudonym of Satoshi Nakamoto.
Explanation:
