How do most scientists propose our solar system was formed? A. a nebula collapsed causing a "big bang"

B. a black hole exploded causing a "big bang"

C. carbon atoms ignited causing a "big bang"

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The formation and evolution of the Solar System began about 4.57 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.

Explanation:

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?