When may you park in a bicycle lane?

Parking in a bicycle lane is generally discouraged because these lanes are designated for cyclists to ensure their safety and clear passage. The correct answer highlights a specific circumstance under which parking may be permissible: when your vehicle does not obstruct a bicyclist's path and there are no posted parking restrictions.

This means that if the bicycle lane is clear enough for cyclists to safely navigate around your vehicle and there are no signs indicating that parking is prohibited in that lane, then it is acceptable to park there. This option emphasizes the importance of being considerate of bicycle traffic and ensuring that your actions do not compromise the safety of others on the road.

The other choices suggest less careful or appropriate circumstances for parking in a bicycle lane. For example, needing to park whenever or during specific times overlooks the essential requirement of not blocking cyclists, while referring to the number of bicycles on the road does not take into account the safety and rights of all cyclists. Therefore, the correct choice reflects a balanced approach to parking that prioritizes safety and adherence to traffic regulations.