Concept:
Transit advertising refers to advertisements displayed on transportation systems or transport-related locations. These advertisements are commonly seen on:
• Buses
• Trains
• Taxis
• Metro systems
• Airports
• Bus shelters
Transit advertising is designed to reach large numbers of commuters and travelers.
Step 1: Understanding transit advertising.
The word “transit” relates to transportation and movement from one place to another.
Transit advertisements are visible:
• During travel
• In public transport systems
• On moving vehicles
This form of advertising helps brands gain repeated public exposure.
Step 2: Analyzing Option (A) News Paper.
Newspaper advertising belongs to print media, not transit advertising.
Hence, Option (A) is incorrect.
Step 3: Analyzing Option (B) Poster.
A poster is a display format and not specifically the medium associated with transit advertising.
Hence, Option (B) is incorrect.
Step 4: Analyzing Option (C) Show card.
Show cards are display materials used mainly inside shops or exhibitions.
They are unrelated to transportation advertising.
Hence, Option (C) is incorrect.
Step 5: Analyzing Option (D) Transport.
Transit advertisements are specifically displayed on transport systems such as buses and trains.
Therefore, this option is correct.
Final Conclusion:
Transit advertisements are published on:
\[
\boxed{\text{Transport}}
\]
Therefore, the correct option is:
\[
\boxed{(4)}
\]