<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A group of gastroenterologists is concerned about low colonoscopy screening rates. They decide to implement a free patient navigation program to assist local residents and encourage them to obtain colonoscopies in accordance with U.S. Preventive Services Task Force USPSTF guidelines. Local residents were recruited at community centers. Participants attended monthly meetings with patient navigators and were regularly reminded that their adherence to screening guidelines was being evaluated. Colonoscopy screening rates were assessed via chart review, which showed that 90 of participants adhered to screening guidelines. Data collected via chart review for local residents recruited at community centers who did not participate in the free patient navigation system found that 34 of that population adhered to USPSTF guidelines. Which of the following has most likely contributed to the observed disparity in colonoscopy screening rates?? A: Confirmation bias, B: Reporting bias, C: Hawthorne effect, D: Sampling bias, E: Recall biasn,  <response>: This is a question about identifying potential biases that may explain the observed disparity in colonoscopy screening rates between the group that received patient navigation services and the group that did not. The key factors to consider are:- The patient navigation group had much higher screening rates 90 compared to the control group 34- The patient navigation group received additional services like monthly meetings, reminders, and were told their adherence was being evaluated- Screening rates were assessed via chart review for both groupsChoice A confirmation bias is incorrect because this refers to the tendency to interpret information in a way that confirms preexisting beliefs, which does not explain the disparity here. Choice B reporting bias is incorrect because both groups had screening rates assessed via the same method of chart review, so there is no differential reporting.Choice C Hawthorne effect seems plausible, as being observed, reminded, and receiving additional services may have motivated the patient navigation group to adhere to screening more than they would have otherwise. This could explain the disparity.Choice D sampling bias is incorrect because we are comparing two groups from the same population, so there is no obvious sampling bias. Choice E recall bias is incorrect because screening rates were obtained via chart review rather than self-report.C: Hawthorne effect 