Answer:
d) Trialibility.
Step-by-step explanation:
Under trialibility a customer can take trial of the product and then, take a decision whether to adapt the product or not.
In this manner, company saves itself from launching the product at complete market level, and incurring cost at the same level.
In the given instance also, company, launches the product on a trial basis and the launch is limited to specific users, that is the product is on trial and then the launch will be made at full commitment only when the trial period will be successful.
Therefore, correct term is
Trialibility