Which theory of motivation most clearly emphasizes the importance of genetic predispositions
drive-reduction theory
instinct theory
hierarchy of needs theory
arousal theory
incentive theory

Instinct theory

Explanation:

 According to the question, the instinct theory is one of the type of motivational theory which basically explained about the importance of the genetic predispositions in all the organisms.

This theory basically emphasize the behavior, thoughts and feelings which is caused by the nature and different types of biological activities.

 The instinct theory result is basically given by the natural response during the process of evolution. For instance, when we doing different types of programming in the form of activities for the purpose of survive.  

 Therefore, Instinct theory is the correct answer.  

it might look like that the ideal way to research the health effects of trans fats is through a controlled experimental feeding trial. but these kinds of trial have several important limitations that the researcher must look into:

short in duration (this factor usually checks up on the intermediary risk factors rather than the actual outcomes of the disease)

limited dietary changes

only makes use of healthy participants