Question

a minimum viable product is a prototype used to test ease-of-use and ______. performance cost functionality viability

Explanation:

A minimum viable product (MVP) is a prototype that focuses on testing the core functionality and whether the product is viable in the market. However, in the context of an MVP's prototype testing, along with ease - of - use, the key aspect it tests is viability. The MVP is developed to check if the product idea is viable, i.e., if there is a market need, if it can be developed and sustained. Performance, cost, and functionality are either not the primary focus of an MVP's prototype testing (performance and cost can be considered later, and functionality in an MVP is the minimum to test viability) or are not the main pair with ease - of - use in this context.

Answer:

viability (the option with text "viability")