Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

[Q]: Abstract: The diagnosis of 5 alpha-reductase deficiency in infancy is reported for the first time in three male pseudohermaphrodites from the Dominican Republic. Basal plasma testosterone to dihydrotestosterone ratios were significantly elevated in two of the three affected infants, and increased markedly in all three infants after administration of hCG. Since urinary etiocholanolone to androsterone ratios could not be determined accurately in this age group, the diagnosis of 5 alpha-reductase deficiency was confirmed by the finding of elevated urinary tetrahydrocortisol (THF) to 5 alpha-tetrahydrocortisol (5 alpha-THF) ratios, as determined by gas chromatography/mass spectrometry, in the affected male infants compared to those in age-matched normal infants. The THF/5 alpha-THF ratios, however, were lower in both the normal children and the affected infants, suggesting increased 5 alpha-reductase activity in infancy. The affected infants had THF/5 alpha-THF ratios comparable to ratios in adult carrier males and significantly lower than ratios in adult homozygotes. Two of the three affected infants are related to the large Dominican kindred we studied previously and initially were raised as females but, after parental counseling, were changed to a male sex of rearing.
Which is the apt title for the abstract? option1: The diagnosis of 5 alpha-reductase deficiency in infancy. option2: Motor neuron excitability: the Hoffmann reflex following exercise of low and high intensity.
[A]: The diagnosis of 5 alpha-reductase deficiency in infancy.

[Q]: Abstract: The population of common seal Phoca vitulina in the westernmost part of the Wadden Sea, The Netherlands, has collapsed during the past few decades. Between 1950 and 1975 the population dropped from more than 3,000 to less than 500 animals. Comparative studies of common seal populations from different parts of the Wadden Sea reveal that pup production has declined sharply only in the western (Dutch) part. A comparative toxicological study on the levels of heavy metals and organochlorines in tissues of seals from the western and northern parts of the Wadden Sea shows that only the polychlorinated biphenyl (PCB) levels differ significantly. This is predominantly a result of PCB pollution from the river Rhine, which mainly affects the western (Dutch) part. PCBs are thought to be responsible for the low rate of reproduction in Dutch common seals on the basis of epidemiological and experimental data on the ability of PCBs to interfere with mammalian reproduction. Here I report that reproductive failure in common seals from the Dutch Wadden Sea is related to feeding on fish from that polluted area. This is the first demonstration of a causal relationship between naturally occurring levels of pollutants and a physiological response in marine mammals.
Which is the apt title for the abstract? option1: Reproductive failure in common seals feeding on fish from polluted coastal waters [published erratum appears in Nature 1986 Dec 4-10;324(6096):418] option2: Ferrite particles: a superparamagnetic MR contrast agent for the reticuloendothelial system.
[A]: Reproductive failure in common seals feeding on fish from polluted coastal waters [published erratum appears in Nature 1986 Dec 4-10;324(6096):418]

[Q]: Abstract: A prospective study of sixty-four men was conducted before they underwent a total hip arthroplasty to try to identify the factors that are predictive of postoperative urinary retention. Although neither the urological history nor the physical examination provided information that was helpful in accurately identifying the patients who were at risk, those whose peak urinary flow rate was less than seventeen milliliters per second did have a statistically significant likelihood of the development of urinary retention. A system of management that we hope will reduce the incidence of this complication is proposed.
Which is the apt title for the abstract? option1: Urinary retention in men after total hip arthroplasty. option2: The Fontan operation. Ventricular hypertrophy, age, and date of operation as risk factors.
[A]:
Urinary retention in men after total hip arthroplasty.