Which of These Approaches Could Help a Company Be More

Which of these approaches could help a company be more responsive to its customers?

A) Focus on the most profitable customers and give them special benefits.
B) Exploit opportunities by finding large companies who are interested in becoming customers.
C) Segment the customer base into distinct groups, and figure out how to appeal to each group.
D) Avoid threats by focusing on customers' enduring tastes and needs.