Answer:
b. Starbucks did not factor in the international dimension of the external environment
Explanation:
Starbucks was guilty of ethnocentrism because they were negligent in not evaluating or performed inadequate evaluation of the culture of French people and may have assumed erroneously due to preconceptions originating in the standards and customs, that the whole of Europe had the same culture.
Whereas the English and German people could grab a coffee on the go, the French prefer to sit and chat over coffee, and this fact was obviously ignored at the product launch stage.