Answer:
A. peripheral
Explanation:
Peripheral route to persuasion: In psychology, the term "peripheral route to persuasion" is described as one of the two different types of persuasion method and generally occurs when a specific listener or person thinks or decides to get agree with the given message or information dependent on any other cues apart from the strength or quality of any idea or argument related to the given message.
Example: An individual decided to buy something because the outside appearance fantasizes him or her.
In the question above, the given statement signifies the "peripheral route to persuasion".
Answer: Dark energy and dark matter describe proposed solutions to as yet unresolved gravitational phenomena. So far as we know, the two are distinct. Dark matter originates from our efforts to explain the observed mismatch between the gravitational mass and the luminous mass of galaxies and clusters of galaxies.
Selective breeding on food crops may create stronger, and more healthy crops. The idea is to find your best crops, and breed them with other crops sharing the traits you want.
I think it's nucleic acid.