Answer:
Variability
Explanation:
Variability -
There are four characteristic of the service , namely , intangibility , inseparability , variability and perishability.
Variability is one of the characteristic of service , which is also known as heterogeneity.
According to variability , there could be possible difference between a particular service , which may deteriorate or even flourish with the time , which depends on various factors like , profit , market price , competition etc.
Hence , It is quite impossible to get the same service again and again .
Hence , from the given scenario of the question,
The correct answer is variability .