There are $4$ useful rules to help decide if a market segment is worth trying to sell into:

Question $7$ options:

a$)$

Measurability, Availability, Open to profitable development, and Size.

b$)$

Measurability, Accessibility, Open to profitable development, and Data.

c$)$

Measurability, Availability Open to profitable development, and Size.

d$)$

Measurability, Accessibility, Open to development, and Size.