Build the expected lab picture of PCOD and then spot the line that overstates a value. The pituitary side shows excess LH from disordered GnRH pulses, so LH is up and, because FSH stays relatively low, the LH/FSH ratio climbs to the classic reversed pattern; both the raised LH and the high ratio are therefore genuine features. On the androgen side, the syndrome is defined by hyperandrogenism, and DHEAS, an adrenal androgen marker, is mildly to moderately raised in many patients, so that statement holds too. Prolactin is where the trap lies. PCOD may at most produce a borderline or mild bump in prolactin, but a markedly elevated prolactin is the signature of a prolactin-secreting pituitary adenoma and demands a different workup. Describing prolactin as markedly high therefore misrepresents PCOD, making it the incorrect option.
\[\boxed{\text{Markedly high prolactin}}\]