An observation is
a. a possible explanation for events using prior knowledge
b. always quantitative
c. made using any of the five senses
d. always qualitative

The correct answer for the blank is -

c. made using any of the five senses.

Explanation:

Observation can be described as a process of closely monitoring or observing a particular situation with the help of any of the five senses (that are eyes, nose, ears, taste, and skin). It enables a person acquire some information of the incidence or situation or person.

For instance, a person observed an accident that occured on the roadside when a car was hit by another car behind it. In this case, the person used his eyes in observing the scene.

Thus, option c) is the right answer.

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