Step 1: Activities arranged for efficient execution identifies the Plan of work, item (IV).
Step 2: Activities arranged chronologically identifies the Calendar of work, item (III).
Step 3: Situation, objectives, problems and solutions identifies the Extension programme, item (I); a blueprint of actions in a time frame identifies Planning, item (II).
\[ \boxed{\text{(A)-(IV), (B)-(III), (C)-(I), (D)-(II), Option (2)}} \]