Answer: The answer is Trade Libel.
Explanation: Trade libel can be defined as the situation in which there is a publication of a false statement of fact that is aimed at intentionally defaming the quality of the products or services of the plaintiff's organization and which then results in commercial damages to the plaintiff.
In the scenario given above therefore, the competitor must provide evidence that Bluebird actually made a false statement about their business, which was intended to demean and defame their products and services.