Ortho Products Would Like to Estimate the Length of Time

Multiple Choice

Ortho Products would like to estimate the length of time its new product,the Sonar Brush (cleans teeth without touching them) ,will stay in the introductory phase of its product life cycle.How is that period of time largely determined?

A) by which distribution channel is chosen
B) by the income level of its target markets
C) by the product's relative advantage over what is currently being used
D) by the general economic environment