You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Paragraph: Differences in air pressure over the surface of the Earth result in wind. The greater the differences in air pressures, the stronger the wind.
 Question: In tornadoes the greater differences in air pressure cause _____ winds. 
 Choices: A)lesser 
B)stronger
stronger