Answer:
c. hallucinations
Explanation:
Hallucinations: In abnormal psychology, the term hallucination refers to the process of experiencing sensations by a person that may appear as to be real or true but it has been created in the mind of the person.
Example: Hearing voices, seeing things that aren't physically present.
Hallucination includes hearing, feeling, seeing, tasting, or smelling something that is not physically present.
In the question above, Nick's symptoms are known as hallucinations.
Answer: with increase in the price of beer lesser number of college students can consume/afford it.
Explanation: After analyzing Ben’s and Holly’s argument, we understand that price of beer is directly proportional to the taxes levied on beer, whereas inversely proportional with number of college students consuming it. Hence, with increase in price lesser number of students will consume it. This conclusion is obviously correct as college students have limited money to manage their expenses and affording expensive beer is not easy for them.
Descriptive investigations involve collecting data about a system, but not making tests or experiments.
Making tests belongs to experimental investigations.
Descriptive investigations aim to draw conclusions from observations of the fenomena, while experimental investigations design tests that let the researcher to compare results on different conditions with a control situation.
There is also the so called comparative investigations which collect data from under different conditions but do not include the control situtation.
