Answer:
Deal
Step-by-step explanation:
The deal is the business term that is done between any two persons in order to generate the benefit for both the parties
Here in the question, the two for one rise the trial between the future customers or its is against the actions of a competitor
Just as example = short term price reductions
It benefits for both the parties i..e for the buyer it gets in less price and for selling one product is sold and get some margin on it
Therefore it is a deal situation