In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Q: Question: Turbidimetry and nephelometry are non-spectroscopic techniques based on the dispersion of light, with interesting applications in biochemical analysis. The criteria to be taken into account when choosing between nephelometry and turbidimetry in the analysis of a sample containing particles in suspension are: 
 Options:  <1> The size of the suspended particles and the detector of the instrument. <2> The size of the suspended particles and the wavelength of the radiation used. <3> The wavelength of the radiation emitted and the shape of the suspended particles. <4> The size of the suspended particles and the color of them. <5> The color of the particles and their fluorescence.

A: 2
****
Q: Question: Regarding gastroesophageal reflux disease, which of the following statements is true? 
 Options:  <1> The intensity and frequency of heartburn has little relationship with the presence and severity of endoscopic esophagitis. <2> Most patients with gastroesophageal reflux disease have esophagitis at endoscopy. <3> Treatment with proton pump inhibitors usually achieves good control of symptoms but is not superior to placebo in the endoscopic cure of esophagitis. <4> Barrett's esophagus can progress to low-grade epithelial dysplasia, high-grade epithelial dysplasia, and finally squamous cell carcinoma of the esophagus. <5> Endoscopic screening and surveillance programs have unequivocally shown to be able to reduce mortality in patients with Barrett's esophagus.

A: 1
****
Q: Question: Dense neat or patterned connective tissue is part of: 
 Options:  <1> Hemopoietic stroma. <2> Tendons <3> Digestive mucosa <4> Mucosa of the uterus. <5> Sclera

A:
2
****
