Sam buys a package of chips and notices that hydrogenated vegetable oil is one of the ingredients. this ingredient primarily:
a. makes the potato chips crunchy.
b. increases the nutritional value.
c. decreases the nutritional value.
d. acts as a preservative.

someone plz

The hydrogenated vegetable oil serves as a preservative, thus, the correct option is D. Hydrogenated vegetable oil are used by food industries to prevent fat rancidity in order to give their product a longer shelf life. Hydrogenated oils are very good preservatives because all the enzymatic activities in the oil has been neutralized during the hydrogenating process. 

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.