Correct option is B
· Personal localite channels: These are communication channels where information is transferred through local leaders, friends, family members, and trusted community members who belong to the same social system.
· Extension agents: These individuals act as personal cosmopolite channels. They come from outside the local social system and introduce new technologies or practices to the local community.
· While both statements are independently true, Reason R is not a direct explanation of Assertion A.
Thus, the correct answer is (b).