What minimum height is mandated for signs placed along roadways?

Answer: B — 7 feet

The minimum height mandated for signs placed along roadways is 7 feet. This requirement is established to ensure that signs are adequately visible to drivers and do not obstruct the view or create hazards for pedestrians. A height of 7 feet is typically sufficient to allow for clearance over vehicles, especially larger trucks and SUVs, while also being high enough to remain visible above typical roadside obstructions. Ensuring proper height helps maintain safety and effective communication of important information to road users.