if most of the diamonds found on earth are between 1 - 10 nm in size, would that suggest that diamonds can…

Brief Explanations:

Diamonds in the 1 - 10 nm size range on Earth are thought to form due to high - pressures and temperatures in the Earth's mantle, not because they are related to meteorites or can be found elsewhere easily. Option A is incorrect as not all meteorites contain diamonds. Option B has no basis as there is no indication these small - sized diamonds originate from meteorites. Option D is too extreme as diamonds can also form in other high - pressure and high - temperature environments in theory, but the main point here is that the size range given doesn't suggest extraterrestrial presence. Option C is correct as it points to the Earth - specific formation mechanism for these small - sized diamonds.

Answer:

C. No, because diamonds that are 1 - 10 nm in size originate from high pressures and temperatures in the Earth's mantle.