| List I (Proposed Theory) | List II (Thinker) |
|---|---|
| A. Drive Theory | I. Clark Hull |
| B. Need Theory | II. Abraham Maslow |
| C. Instinct Theory | III. William McDougal |
| D. Opponent-Process Theory | IV. Richard Soloman |
This matching exercise links the proposed psychological theories with their respective proponents:

Match List-I with List-II 

