In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

Michael was able to get the stains out of the sofa, unlike Hunter, because _ used a professional service. (A) Michael (B) Hunter
A

Aaron was less careful with his appearance than Ryan because _ did not work in a professional environment. (A) Aaron (B) Ryan
A

Barb thought the smell of the bleach was too overwhelming, nevertheless she used the _ anyways. (A) bleach (B) smell

A