Final answer:
The strong pressure gradient in a tornado can cause wind speeds to reach as much as 300 miles per hour, which is about 500 km/h. Option B.
Step-by-step explanation:
The strong pressure gradient in a tornado causes wind speeds to reach as much as 300 miles per hour. Tornadoes are known for their raw destructive power, descending from clouds in funnel-like shapes and spinning violently. This rotation is particularly intense at the bottom, where the funnel is narrowest, and can result in wind speeds as high as 500 km/h (approximately 300 miles/h). The extreme speeds can blow houses away as if they were made of paper and are capable of piercing tree trunks with pieces of straw. Option B.