# Choose a chart from the question, relationship and actual unit

Original constructed teaching cases. No real accounts, participants or customers.

C1 — Constructed category counts 3, 6, 9: choose labeled common-baseline bars and retain the independent-category unit. Reject a “share of every reader” pie because no such reader population exists. Result: exact comparison in chart, table and text, without an audience claim.

C2 — Constructed stocks 100, 110, 108: choose dated points with a clearly explained connecting line, preserving the three observations. Reject a summed “318 acquired” headline. Result: an observed-endpoint difference of eight in the fixture, not verified acquisition or a continuous growth path.

C3 — Constructed incompatible units: 30 public response events and 1,000 impression events are available, distinct readers are not. Decision: explain 30/1,000 = 3% as the declared event ratio if appropriate, and leave a people-conversion chart out. Result: missing people remain unknown; a visual cannot recover them.