Question

Which statement best explains why the Big Bang Theory is the leading scientific explanation of the development of the universe over time?

Its experiments reject all old theories on the origin of the universe.

Its experiments yield different results every time they are repeated.

Its results vary from time to time due to new discoveries made by scientists.

Its results have been repeated, verified, and accepted by scientists worldwide.

Answer 1

Its experiments reject all old theories on the origin of the universe.

Answer 2

Correct: Its experiments reject all old theories on the origin of the universe.

The Big Bang Theory claims that the world started, scientifically, with an explosion of some sort. Therefor, it rejects all claims before that (religious explanations).

Answer 3

That's not why it's the leading scientific explanation, though, so that's wrong. Even though it's true, it's not relevant to the question. The answer is in the labeling of the word as a 'Theory', which by definition must fit this explanation:

Its results have been repeated, verified, and accepted by scientists worldwide.

Although you can't physically 'test' the Big Bang Theory itself, you can test aspects of it in labs or through observations (such as the background radiation of the universe), all of which support the idea that there was some type of explosion and expansion. There hasn't been any evidence that's pointed to the contrary yet, therefore it's repeatedly withstood assault from peer review and survived.