What is the meaning of the following traffic sign?

- No entry for bicycles.· Correct answer
- Entry for bicycles only.
- No entry for bicycles and motorcycles.
- No entry for four-wheeled motor vehicles.

Sign 412 is a red circle with a black bicycle inside it, indicating that entry is prohibited for bicycles. This sign does not apply to motorcycles (motor vehicles), only to bicycles, which are not motor vehicles.
Red circle with a bicycle = prohibited for bicycles only
Confusing a prohibitory sign with a mandatory sign
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