Which of the following is true of concept testing?

In$-$person surveys are preferred because online customer surveys rarely provide the information needed to determine whether a product will be successful.

The two most vital questions to ask are whether consumers will purchase the product and whether the product is new and different.

Companies typically go through just one or two rounds of concept testing before landing on a successful product idea.

The best approach to developing a product idea is to invest money up front and avoid failure at all costs through rigorous testing.