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: The faster the clicks of a Geiger counter occur, the higher the level of radiation.
 Question: A Geiger counter is clicking away, and suddenly slows down quite a lot. The counter is telling people that the level of radiation is 
 Choices: A)lower 
B)higher
lower