If a stimulus plus a response results in a satisfying outcome, the probability of that response occurring again

a. decreases
b. depends on the cs-ucs relationship
c. increases
d. is not affected

   C. Increases

Explanation:  If the reinforcement i.e stimulus achieves the desired response i.e a response to a given stimulus, that is, the positive outcome as it is said, then it is likely that this response will be repeated / occurring again and that probability increases. Whether it is a positive or negative reinforcement, that is, whether a trait or habit wants to be potentiated or wants to be eliminated, with reinforcement an adequate response to the stimulus occurs, and it is likely that this response will be repeated because reinforcement in the form of a stimulus aims to increase the response.

answer; (d) one tectonic plate plunges beneath another; (most common,convergent boundaries)

i honestly speaking this is too long