The Big Bang theory seems to explain how elements were formed during the first few minutes after the Big Bang.Which hypothetical observation below (these are not real observations)would call our current theory into question?
A)the discovery of a star-like object made entirely of carbon and oxygen
B)the discovery of a planet that with no helium in its atmosphere
C)the discovery of a galaxy with a helium abundance of only 10% by mass
D)the discovery of a galaxy with 27% helium rather than the 25% that theory tells us was produced in the Big Bang

Question

Quizplus · Accepted Answer

The Big Bang theory predicts that about 25% of the universe's mass should be helium, as it was produced in the first few minutes after the Big Bang. A galaxy with only 10% helium by mass would significantly deviate from this prediction, suggesting that our understanding of the early universe and element formation might be incorrect.

The Big Bang Theory Seems to Explain How Elements Were