Because We Learn to Do Familiar Tasks Automatically,we Can Focus

Because we learn to do familiar tasks automatically,we can focus our time and energy on other things.The problem with always relying on automatic processing is that

A) we become automatons.
B) we reduce our chances of finding new or more efficient ways to approach problems.
C) the brain can literally get stuck,leading to mental illness.
D) our circadian rhythms can be affected.