Answer:
Vaco Nunez de Balboa
Many say that is was Magellan, but Balboa actually reached the Pacific Ocean six years before him.
While soviets rejoiced in the attainment of the sputnik system, Americans feared soviet advancements in science.
<h3>What advancements made Sputnik possible?</h3>
Sputnik made the possible to study the radio wave transmission and density of the atmosphere easy. He also supported the scientist to learn to track objects in orbit. He encourages testing satellite pressurization. This made pressure to America for advance of technology.
Thus, option A is correct.
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I think the answer to this is letter B
You Need to add the sentence for me to help you.
It was Walter Raleigh who got permission from Elizabeth I to establish a colony in North America. It should be noted however that this colony ultimately failed, and it wasn't until Jamestown that a viable colony existed.