Who was the most powerful king??​

Genghis Khan was perhaps the most brutal leader the world has ever seen, but he was one of the most successful. He founded the Mongol Empire, one of the most powerful forces in the world at that time.

Of all time it is definitely Genghis Khan. He was successful but successful because he was brutal.

Explanation:

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explanation: the line "to save the day, harry must get past a scary three-headed guard dog" from the summary best justifies the conclusion that harry potter and the sorcerer’s stone was influenced by ancient greek mythological literature. the three other choices had nothing to do with ancient greek literature - and the words "three-headed guard dog" are what makes that choice the correct answer.