in pure competition, producers compete exclusively on the basis of\nselling identical items.\nadvertising…

in pure competition, producers compete exclusively on the basis of\nselling identical items.\nadvertising heavily to promote their good.\nproducing the unique features of their good.\nfocusing on maintaining a positive image.
Answer
Brief Explanations:
In pure competition, products are homogeneous. Producers cannot differentiate their goods through features, advertising, or image - building. They sell identical items and compete mainly on price.
Answer:
A. selling identical items.