A) enzymes
<span>Enzymes are catalysts which aid in speeding up chemical reactions (for example, breaking down hydrogen peroxide into water and oxygen). </span>
The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.
So an object denser than water will sink
A seems like the least idiotic of the four answers, so I would go with A.
If they had their own veggies, they wouldn't have to 1; drive to buy more