If tourism increases greatly in a national park, which management is suitable for conservation?

Correct answer: Control speed and number of vehicles

Direct answer: Option B is correct. A national park protects wildlife, so tourism must be managed rather than allowed without limits. Step by step: more visitors and vehicles create noise, pollution, road danger and disturbance; limiting vehicle numbers reduces pressure; controlling speed lowers the chance of collisions; regulated routes and timings further protect animals. Option B therefore represents responsible tourism. Option A is wrong because uncontrolled entry can damage habitats and disturb breeding animals. Option C is wrong because chasing animals causes stress and may lead to injury. Option D is wrong because litter can poison animals, spread disease and pollute soil and water. Conservation means allowing people to enjoy nature while keeping human activity within safe limits. Exam cue: when tourism rises, choose control, monitoring, cleanliness and wildlife safety.