15 POINTS IF YOU HELP

liver

Explanation:

Sometimes your body produces them as part of its normal function, like breaking down protein, a component in foods such as meat and nuts. The liver also cleans blood that has just been enriched with vitamins and minerals during digestion.

the correct answer is 4 (giveaways to the public)

something that is given away or gave out for free. an occasion at which things are given away to free. something that is evident or obvious; something that uncovers a mystery.

it could be be in a form of a lucky draw as well. these the company events gather more audience for their pr and it also increases their ratings as well. this is a way to attract more customers towards themselves.