For A, since less than 25% of Americans are descended from Native Americans (via a quick Google search), it's safe to say that this isn't necessarily correct.
For B, since you're technically an immigrant if you're not Native American (and 100%-25%=75%=more than half), I'd think that this is right
For C, since 15 million people immigrated to the US in the 1800s, as well as that the birth rate actually dropped from about 55 to about 30-45 births per 1000 people per year, I wouldn't necessarily call it 100% correct.
For D, since there are 12.8 million Asian Americans (and over 300 million Americans), 12.8 million is clearly not the majority, proving B right
Taking into account the statement above: "In 1965 one of the founders of Intel predicted, "The density of transistors in an integrated circuit will double every year." This is now known as"
This is now known as Moore's law.
Hope this helps.
