Answer:
B. product concept development; marketing strategy development
Explanation:
Product concept development is the stage at which a lot of product ideas are generated, and new product are screened with the purpose of identifying good ideas and discarding poor ones on time. The new product concepts are then tested at this stage with a group of target consumers in order to discover the concepts with strong consumer appeal.
After product concept development, strong concepts proceed to marketing strategy development which, based on the product concept, is the stage at which an initial marketing strategy for a new product are designed.
