Many companies have cut travel budgets so that fewer businesspeople are authorized to fly first class. Despite the shrinking pool of business-class travelers. British Airways has grown market share fore its trans-Atlantic business class by offering greater comfort. Promotions to frequent flyers stress that passengers can sleep in fully reclining seats and arrive refreshed to carry out a full day's schedule. The segmentation strategy of British Airways us an example of

A. life state segmentation
B. geographic segmentation
C. social class segmentation
D. behavioral segmentation
E. psychographic segmentation