Analogy — Map worker to tool of work: Typist : Typewriter :: Writer : ?

Introduction / Context:
The relation is “professional/actor → primary tool.” A typist works with a typewriter. For a writer, we seek the basic writing instrument in parallel fashion (without overfitting to modern variations like laptops).

Given Data / Assumptions:

• Typist → typewriter (tool).
• Writer → pen (traditional tool).
• Book and script are outputs; paper is a medium.

Concept / Approach:
Preserve the actor→instrument mapping rather than actor→product or actor→medium.

Step-by-Step Solution:
Identify tool for writer: pen.Pair: Typist : Typewriter :: Writer : Pen.

Verification / Alternative check:
While writers may use keyboards, analogy questions typically reference the canonical, simplest instrument. Pen best mirrors typewriter as a tool of writing work.

Why Other Options Are Wrong:
(a) Book – finished product.
(b) Paper – writing surface (medium), not the tool.
(c) Script – a kind of written product.

Common Pitfalls:
Confusing medium or output with instrument. The first pair clearly cues “person → tool.”

Final Answer:
Pen