Answer:
Market growth/market share matrix (B)
Explanation:
This model was developed by Boston Consulting Group (BCG) and it used to analysis company products portfolio.
A company is expected to have a balanced portfolio which comprises of problem child ( low market share and high market growth), Star (High market share and high market growth), Cash cow (high market share and low market growth) and dog (low market share and low market growth).
Understanding of the market-growth and market-share position of each product in the company portfolio will guide in designing the right marketing strategy.