What are the main groups of amino acids and their characteristics? I - Amino acids are chemical structures composed of an amino group, a carboxyli...

What are the main groups of amino acids and their characteristics?

I - Amino acids are chemical structures composed of an amino group, a carboxylic acid group, a carbon alpha and a side chain.
II - Amino acids can be classified into apolar, polar, acidic and basic groups.
III - Apolar amino acids have hydrophobic side chains, while polar amino acids have hydrophilic side chains.
IV - Acidic amino acids have a carboxylic acid group in their side chain, while basic amino acids have an amino group in their side chain.
a) Only statements I and II are correct.
b) Only statements II and III are correct.
c) Only statements I, II and III are correct.
d) All statements are correct.