Answer:
a b c and d are all valid answers.
Explanation:
According to my research on the consumer purchasing process, I can say that based on the information provided within the question all of the answers provided are factors. This is because, if you ever talk to professional who has studied individuals buying products they would say that all aspects come into play when the individual makes a purchase. Such as whether other people are using that produce (social), how they are going to feel about that product (psychological), and if they can afford that product (situational), yet all of these aspects would not happen if the individual was not aware of the product through the firm's marketing mix.
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