While participating in a psychological study you listen to different tones and tell the researcher when you can hear them, most likely to researcher is studying.. a.) top-down processing b.)gustation c.)absolute threshold or d.) subliminal perception

The researcher is most likely studying C. absolute threshold.

Explanation:

Threshold refers a specific intensity which needs to be exceeded in order to obtain a certain reaction. For example, pain threshold.

The absolute threshold refers to the smallest change in a stimulus' intensity in order to be identified by the senses, such as hearing, vision, etc.

In this case, a change in tones requires a low intensity, meaning an almost subtle change can be easily identified by the human sense. It is most likely the researcher is studying your absolute threshold.  

no one should discriminated against because he or she is not from a minority group

the answer would be c. sediment buildup on continental slope

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