In Ivan Pavlov’s classical conditioning paradigm, the dog salivated in response to the food at the outset of the experiment because the food was

an unconditional stimulus

Explanation:

An unconditional stimulus is the one which can generate a response in the organisms and the organism have not been introduced with the stimulus previously. The response of the stimulus is natural. It is the part of classical conditioning process. For example, when one smells the food, the person may feel hungry. The smell here is unconditioned stimulus.

According to the given situation, the dog is salivated due to the food which is here the unconditional stimulus which is responsible for generating a natural response in the dog.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

saving account is right