<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 4-month-old boy with a history of multiple infections presents with muscle stiffness. On physical exam, he is found to have carpopedal spasm as well as a heart murmur. Based on your clinical suspicion you decide to obtain a chest X-ray which shows a diminished shadow in the mediastinum. A mutation in which of the following chromosomes is the most likely cause of this patients presentation?? A: Chromosome 5, B: Chromosome 7, C: Chromosome 17, D: Chromosome 22, E: Chromosome X,  <response>: This is a clinical vignette describing a 4-month-old boy with a history of recurrent infections, muscle stiffness, carpopedal spasm, heart murmur, and diminished mediastinal shadow on chest X-ray. The clinical findings are consistent with DiGeorge syndrome, which is caused by a deletion in chromosome 22q11. Therefore, the most likely chromosome mutation causing this patients presentation is chromosome 22.D: Chromosome 22 