The second one. To protects them from hearing the deadly song of the sirens
Hi there, the correct answer your looking for is:
A.
Answer:
The key concept for our discussion here is that the accelerating expansion of the universe is an innate property of spacetime itself on scales where spacetime no longer acts like traditional gravity. In summary, the influence of gravity only extends to the edge of each gravity group. Beyond that, spacetime no longer behaves like gravity.
Explanation:
