When a woman goes into the first stage of labor, the oxytocin level in her plasma is 40 pg/ml, but during the second stage of labor it is 123 pg/ml. Once the baby has been delivered the mother's oxytocin level is 64 pg/ml. Which type of feedback

mechanism is occuring?

A. Negative feedback

B. Positive feedback

Some of her  assignments would be creation of drugs. she is a medical chemist after all so she'd need to have the necessary knowledge to make medicine which can later be sold in a pharmacy 

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature