Match List-I with List-II: (II). 100 (III). 35 (IV). 15 | List... | Agrigyan

In Everett Rogers' Diffusion of Innovations theory:
Different adopter categories rely on distinct communication channels for knowledge acquisition and decision-making.
Innovators and the Early Majority rely heavily on formal, institutionalized mass media channels (radio, TV, agricultural bulletins, print media) to gain initial awareness, technical information, and validation before committing to widespread adoption.
Later categories (Late Majority and Laggards) rely almost exclusively on informal, peer-to-peer interpersonal communication channels within their local social system.
(Official Answer Key: Option 4: Early Majority).

In extension education and instructional technology, audio-visual aids are classified systematically:
Visual aids are categorized into Projected aids (e.g., slides, overhead projectors, LCD projectors) and Non-Projected aids.
Non-projected aids include:

• Display type visual aids: Three-dimensional recognizable scale replicas or representations of original objects (such as Models, Mock-ups, Specimens, Exhibits, Posters, and Flannelgraphs) meant to be exhibited and displayed.
• Graphic aids: Charts, graphs, diagrams, maps, and cartoons.
• Print media: Leaflets, folders, bulletins.

In extension administration and program planning:
A Project Leader (or local action-phase leader) is a local person chosen specifically on the basis of special competence, technical interest, and fitness to head, steer, and execute a dedicated phase or project of the extension program.
A Cooperator is an individual farmer who agrees to provide their field or resources for demonstration.
An Administrator provides overarching bureaucratic oversight.
A Community Leader exerts broad sociopolitical leadership across the entire village.
(Official Answer Key: Option 1: Project leader).