When gathering data or clues about personality, the best policy is to . a. gather only clues that are certain not to be misleading b. gather only a very small number of clues and focus on the important ones c. rely solely on self-report data d. collect as many clues as possible

d. collect as many clues as possible

Explanation:

When carrying out an investigation or research, taking a bias or a one sided information would be a partial and incomplete judgement for the researcher to conclude on, the best approach to every research, investigation is to endeavor that all information is gotten about the case, this is possible by gathering as many clies as possible; every information that relates to the answer. When this is done, makes it easier to gather information about a personality and draw out a conclusion.

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answer; the region experienced a surplus of food;