Answer:
b. competitive advantage.
Explanation:
Competitive advantage -
It is the condition which allows the company or the country to produce services or goods of lower price but of equal level .
It enables the productivity to generate superior margins or more sales in comparison to its own market rivals .
These are attributed to factors like the cost , branding , the distribution network , customer service , intellectual property and structure .
Hence , from the data of the question , the correct option is ( b ) .