<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An 8-year-old boy presents to his primary care pediatrician for routine check-up. During the visit, his mom says that she has noticed yellow bumps on his eyelids and was concerned about whether they were a problem. Upon hearing this concern, the physician inquires about parental health studies and learns that both parents have high cholesterol despite adhering to a statin regimen. Furthermore, other family members have suffered early myocardial infarctions in their 30s. Physical exam reveals flat yellow patches on the patients eyelids bilaterally as well as hard yellow bumps around the patients ankles. Based on clinical suspicion an LDL level is obtained and shows a level of 300 mgdL. What protein is most likely defective in this patient causing these findings?? A: Lipoprotein lipase, B: LDL receptor, C: VLDL receptor, D: Apoprotein B48, E: Apoprotein E,  <response>: This is a clinical vignette describing a pediatric patient with physical exam findings concerning for familial hypercholesterolemia. The key findings are yellow bumps on the eyelids and ankles in a child with a strong family history of premature cardiovascular disease and hypercholesterolemia. The markedly elevated LDL cholesterol level also supports the diagnosis of familial hypercholesterolemia. This condition is caused by defects in the LDL receptor, leading to decreased clearance of LDL from the bloodstream. Therefore, the defective protein is most likely the LDL receptor.B: LDL receptor 