In addition to using the sociological perspective, sociological investigation starts with .

curiosity and questioning              

Explanation:

Sociological Investigation: The term sociological investigation is defined as one of the research methods whereby an investigator observes different people systematically while associating with them in their day-to-day activities.

In sociology, the different approaches that are being involved in the sociological investigation include social-conflict, feminism, interactionalism, and structural-functionalism.

In the question above, the given statement signifies the "curiosity and questioning.

answer; (c) the product does not cost the price shown in the advertisement; i believe this is correct; /// plz check   first good luck