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).
Q: Paragraph: At higher temperatures, particles of reactants have more energy, so they move faster. They are more likely to bump into one another and to collide with greater force.
 Question: Rich is examining a cold particle and a hot particle. Which likely moves the fastest? 
 Choices: A)the hot particle 
B)the cold particle
A:
the hot particle