Answer:
Price elasticity
Explanation:
Price elasticity -
It refers to the extent to which the demand or desire for something alters with the fluctuation in the price , is referred to as price elasticity .
As if the price of some commodity goes up , people tends to not buy the thing any more and tries to finds it cheaper alternative .
And , as the price reduces , people tries to buy the specific goods and service .
Hence , from the given scenario of the question ,
The correct answer is price elasticity .