True. Lactic acid is caused by strenuous exercise. The lactic acid is formed because while working out, you don't receive as much oxygen.
I would say the answer is C. Hope I helped ^-^
I believe B should be your only answer. On the healthcare level, you are in error only a certain amount. Omitting a signature on a medical record is against the law (considering you NEED, consent and or orders to be able to do something). Prescribing medications correctly, is actually doing something right. And if you have seen some doctors handwriting, their handwriting is far from legible, that doesn't mean that treatment was inadequate.
Failure to treat in a timely manner is an error on your part. and should be the correct answer.
