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: Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.
 Question: Eric notices an increase in antibiotic resistance in a certain bacteria. The mutation that causes the resistance has become _____ common 
 Choices: A)more 
B)less
more