The answer that fits the blank above is THOUGHT PROCESS. When practicing and improving one's driving skills, this would really need more patience because you would have to require to repeat parking and passing and with this, there should be a continuous thought process because presence of mind is very crucial when driving.
Because babies want love, and want attention from people. Once the baby sees the mom leave, he/she feels insecure and scared.
-Steel jelly
Why'd you post it if you already know the answer (C)