Technical Drawing — A good freehand sketch emphasizes proper proportions, clear geometry, readable annotations, and appropriate line-weight hierarchy to communicate design intent.

Introduction / Context:
Freehand sketches are often the first step in conveying a design. Their effectiveness relies on proportion, clarity of lines, and line-weight hierarchy to distinguish visible edges, hidden details (if shown), and emphasis areas.

Given Data / Assumptions:

• Sketches are not necessarily to scale but should be proportionally accurate.
• Annotations complement—do not replace—good geometry.
• Line weights guide the viewer’s eye and establish depth and priority.

Concept / Approach:
Proportion ensures recognizability; clarity prevents misread features; line weights establish visual hierarchy (thicker for visible outlines, thinner for construction lines).

Step-by-Step Solution:
1) Block in bounding shapes to set proportions.2) Add features with consistent projection and clean strokes.3) Apply line weights to emphasize primary edges.4) Add concise notes and critical dimensions if needed.

Verification / Alternative check:
Compare a sketch with uniform line weight to one with hierarchy: the latter reads faster and more accurately.

Why Other Options Are Wrong:
Minimizing line weights or geometry undermines readability; claiming line weights are “only in CAD” is false—hand sketches routinely use them.

Common Pitfalls:
Overusing dark lines for construction, crowding notes, or misproportioning major features reduces clarity. Keep construction marks light and erase when finished.

Final Answer:
Correct