Answer: B
Explanation: Stem cells are the building blocks of the human body. At the start of life, they divide over and over again to create a full person from an embryo. As we age, they replenish cells in our blood, bone, skin and organs. Stem cells could be powerful tools in treating injury and illness.
died 380 CE), regional emperor of India from about 330 to 380 CE. He generally is considered the epitome of an “ideal king” of the “golden age of Hindu history,” as the period of the imperial Guptas (320–510 CE) has often been called. The son of King Chandra Gupta I and the Licchavi princess Kumaradevi, he is pictured as a muscular warrior, a poet, and a musician who displayed “marks of hundreds of wounds received in battle.” In many ways he personified the Indian conception of the hero.
Samudra Gupta was chosen as emperor by his father over other contenders and apparently had to repress revolts in his first years of rule. On pacifying the kingdom, which probably then reached from what is now Allahabad (in present-day Uttar Pradesh state) to the borders of Bengal, he began a series of wars of expansion from his northern base near what is now Delhi. In the southern Pallava kingdom of Kanchipuram, he defeated King Vishnugopa, then restored him and other defeated southern kings to their thrones on payment of tribute. Several northern kings were uprooted, however, and their territories added to the Gupta empire. At the height of Samudra Gupta’s power, he controlled nearly all of the valley of the Ganges (Ganga) River and received homage from rulers of parts of east Bengal, Assam, Nepal, the eastern part of the Punjab, and various tribes of Rajasthan. He exterminated 9 monarchs and subjugated 12 others in his campaigns.
From inscriptions on gold coins and on the Ashoka pillar in the fort at Allahabad, Samudra Gupta is shown to have been especially devoted to the Hindu god Vishnu. He revived the ancient Vedic horse sacrifice, probably at the conclusion of his fighting days, and distributed large sums for charitable purposes during these ceremonies. A special gold coin that he issued commemorated this ceremony, while another showed him playing the harp; all were of high gold content and excellent workmanship.
The caste status of Samudra Gupta and his successors remains uncertain. It is reasonable to assume, however, that the Guptas supported caste distinctions, and they may have been responsible for the emergence of Brahmanism as a theological system as well as a code of social behaviour, which was carried into present Hindu society.
In 139 B.C.E., the Chinese emperor dispatched Zhang Qian to central Asia to seek allies against the Xiongnu. The Xiongnu were a large confederation of Eurasian nomads who dominated the Asian Steppe.
