Concept:Rural feeder roads improve physical access to markets and services, but do not change land ownership rules.
Explanation:Good feeder roads reduce travel time and cost for farmers.
This helps them transport produce, which solves transportation problems.
Easy movement allows farmers to reach buyers, which improves marketing of farm products.
Roads also help extension officers visit farmers, improving delivery of extension services.
However, the land tenure system deals with rights, ownership, and use of land.
Building roads cannot change these legal or customary land arrangements.
Therefore, the land tenure system is not an access problem solved by rural feeder roads.
Answer:B. land tenure system