Correct me if I am wrong, but I believe the question is Item 106?
If so, you must combine the information in the third paragraph along with the information in the table. NPY alone, produces only 0.28 ng/mL in the blood. GnRH alone, produces only 4.74 ng/mL, but together they produce 7.03 ng/mL. Something is going on here. Since the passage is about hypothalamic factors and neuromodulators, you could safely assume that NPY is an enhancer because it enhances production of LH. high-frequency GnRH pulses stimulate LH release. There are differences in GnRH secretion between females and males. In males, GnRH is secreted in pulses at a constant frequency, but, in females, the frequency of the pulses varies during the menstrual cycle, and there is a large surge of GnRH just before ovulation.
