Final answer:
The first emperor of China was Shi Huangdi.
Step-by-step explanation:
The correct answer is d. Shi Huangdi. Shi Huangdi was the first emperor of China and ruled from 221 BCE to 210 BCE. He was the founder of the Qin Dynasty and is known for unifying China through various reforms and building projects, including the construction of the Great Wall of China.
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