What Are the Three Sources of a Unique and Valuable

What are the three sources of a unique and valuable strategic position?

A) few needs, many customers; broad needs, few customers; broad needs, many customers
B) low-cost products; huge market needs; unique products
C) many needs, few customers; little need, many customers; narrow needs, few customers
D) poor products available; few products available; no products available
E) bad economy; strong economy; stable economy