Automotive batteries can
a. produce explosive gasses
b. cause chemical burns to the skin and eyes
c. heat metal jewelry to its melting point
d. all of the above

All of the Above would be your answer. The battery contains acid and gasses that can explode and cause burns to the skin if precautions aren't taken. The chemicals are so strong that the battery acid an also melt jewelry and other soft metallics.

If ana decided to be against in prioritizing the task in her to do list, she will likely have insufficient time in doing the things in which she wouldn't be able to finish and in the same way, she won't be able to finish all of the task that she needed to do.