Answer:
Competitive advertising.
Explanation:
Competitive advertising is used to create difference in product sold by itself and product sold or manufactured by other competitor in the Market. It helps to influence consumer´s choice in buying the product. It also help the firm to gain maximum market share as other are new in the marketplace.
Competitive advertising are done on the basis of product´s quality, price, ingredient, benefit of product, etc.
As firm´s product is already in growth phase of life cycle and other company is just entering the marketplace, so firm can use competitive advertising to influence consumer´ s buying choice and can gain more market share.