Which of the following exemplifies the empirical method?
a. a student in a psychology class writes his term paper on whether or not fish feel pain.
b. a student writes a letter to his professor requesting a change in course policy.
c. dr. hysock-witham decides to start her course later because so many students arrive late.
d. dr. sarkeesian observes and records how watching cartoons influences heart rates.

The option that exemplifies the empirical method is D. Dr. Sarkeesian observes and records how watching cartoons influences heart rates.

Explanation: The empirical method is the method used in empirical research. It consists in acquiring knowledge by means of controlled observation and in recording the results of this observation in order to confirm a theory or a hypothesis. Taking this into account, it can be said that option D. exemplifies the empirical method since it makes reference to the two instances that conform this particular method, the instances of observation and record of the observation, in order to study how watching cartoons affects the heart rate.

vertical merger is the term used for the joining of two or more firms involved in different stages of producing the same good or services.

explanation:

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