Answer: price leadership
Step-by-step explanation: Price leadership is a circumstance where one business, typically the dominant one in its market, sets prices that its rivals follow closely.
This business is typically the one with the minimum cost of production, thus being able to outperform the prices charged by any rival who tries to set their prices below the price range of the market leader.
Rivals could increase prices than the cost leader, but this would likely lead to lower share of the market unless rivals were able to distinguish their goods adequately.
Hence from the above we can conclude that the given case depicts price leadership strategy.