please answer with reason why the option is correct and why the other options are incorrect please answer in detail with steps and proper explanation or leave need correct answer please thanks

1. Can only one company have a true competitive advantage in a category?

a Yes. As long as the competitive advantage can be sustained.

B No. There is no such thing as a long-term competitive advantage

C No. There are customers in the market who want different things

D Yes true competitive advantage can influence all potential customers

2. Companies can differentiate based on which type of differences?

A Real

b Both real and perceived

C Competitive

D Perceived.

3. Where would you expect to see product innovation ideas in the process development process?

A Planning

B Commercialization

C Conceptualization

D Product concepts