In the Portfolio Matrix,characteristics of Goods and Services in the Leverage

In the portfolio matrix,characteristics of goods and services in the leverage quadrant are:

A) few suppliers with adequate capability so substitution and switching are difficult.
B) item substitution is possible,switching is difficult,many suppliers are available.
C) item substitution and supplier switching are possible,but few suppliers are capable.
D) competitive supply market,substitution is possible,total cost is a primary focus.
E) competitive supply market,substitution is possible,price per unit is important.