<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 77-year-old female comes to a medical schools free clinic for follow-up examination after a urinary tract infection UTI and is seen by a fourth year medical student. The clinic serves largely uninsured low-income patients in a New York City neighborhood with a large African American and Latino population. Two weeks ago, the patient was treated in the local emergency department where she presented with altered mental state and dysuria. The medical student had recently read about a study that described a strong relationship between cognitive impairment and UTI hospitalization risk RR 1.34, p 0.001. The attending physician at the medical students free clinic is also familiar with this study and tells the medical student that the study was conducted in a sample of upper middle class Caucasian patients in the Netherlands. The attending states that the results of the study should be interpreted with caution. Which of the following concerns is most likely underlying the attending physicians remarks?? A: Confounding bias, B: Low internal validity, C: Poor reliability, D: Low external validity, E: Selection bias,  <response>: This is a question about interpreting a research study and its applicability to a specific patient population. The key details are:- A study found a relationship between UTI and cognitive impairment in a sample of upper middle class Caucasian patients in the Netherlands. - The attending physician cautions about applying this study to the current patient, who is an older African American woman seen at a clinic serving a low-income, minority population. The attendings concern relates to the external validity or generalizability of the study findings. The study population differs from the patient population in terms of demographics and socioeconomic status. Therefore, the attending is concerned about applying the findings directly without considering potential differences between the two populations.D: Low external validity 