Final answer:
Pythagoras lived at the same time as other influential thinkers including Confucius and Buddha. Socrates was slightly later, but his life did overlap with Pythagoras. The correct answer is D. All of the above.
Step-by-step explanation:
Concurrently with the Presocratic philosopher Pythagoras (570-490 BCE), several other influential thinkers lived around the world.
Among them were Confucius, who was formulating his philosophy in China; Buddha, who was establishing the spiritual and philosophical framework of Buddhism in India; and, although slightly later, Socrates, whose life overlapped with the end of Pythagoras' life, was beginning his philosophical journey in Greece.
Therefore, the answer to the question 'Worldwide, who else lived concurrently with Pythagoras?' is D. All of the above.
Pythagoras lived concurrently with Confucius, Buddha, and Socrates. While Pythagoras was a philosopher and mathematician in ancient Greece, Confucius was a Chinese philosopher who lived during the same time period.
Buddha, also known as Siddhartha Gautama, was the founder of Buddhism and lived around the same time as Pythagoras. Socrates, another renowned philosopher, was a contemporary of Pythagoras in ancient Greece as well.