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".

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

After Angela got a perm, her hair was in poor condition. After Kayla offered to fix it, _ felt very helpful. (A) Angela (B) Kayla
B

Singh drank a soda with caffeine to combat his tiredness but it didn't work because the _ was too strong. (A) tiredness (B) caffeine
A