Which of the Following Scenarios Represents a Market Segment That

Which of the following scenarios represents a market segment that likely does NOT meet the "substantial" criterion?

A) Members of the segment have agreeable personalities and the Company makes shoes.
B) Members of the segment generally don't use cell phones and the Company makes a cell phone app.
C) Members of the segment are below the poverty line and the Company makes jewelry.
D) Members of the segment buy grain and the Company sells grain.