A
it's the most grammatically correct and understandable
"It converts the inactive enzyme pepsinogen into the active enzyme pepsin, which is responsible for digesting proteins in your stomach. HCL also helps digest other foods in your stomach. Ultimately, HCL is neutralized by chemicals secreted in your small intestine."
But, use your own words, though. Because I just hit copy & paste. Hope this helps!
1. <span>Rain occurs when water vapor condenses
</span><span>2. The best term to use to describe turning from a liquid to a gas is </span><span>vaporization
</span><span>3. When you add heat energy to a liquid it turns into a gas</span>
Plants leafs increasing carbon dioxide. it's remove dust air pollution