<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 12-month-old girl is brought to her pediatrician for a checkup and vaccines. The patients mother wants to send her to daycare but is worried about exposure to unvaccinated children and other potential sources of infection. The toddler was born at 39 weeks gestation via spontaneous vaginal delivery. She is up to date on all vaccines. She does not walk yet but stands in place and can say a few words. The toddler drinks formula and eats a mixture of soft vegetables and pureed meals. She has no current medications. On physical exam, the vital signs include: temperature 37.0C 98.6F, blood pressure 9550 mm Hg, pulse 130min, and respiratory rate 28min. The patient is alert and responsive. The remainder of the exam is unremarkable. Which of the following is most appropriate for this patient at this visit?? A: Referral for speech pathology, B: MMR vaccine, C: Rotavirus vaccine, D: Meningococcal vaccine, E: Gross motor workup and evaluation,  <response>: This is a question about appropriate vaccines and developmental milestones for a 12-month-old girl at a routine well child checkup. The patient is up to date on vaccines, so we need to consider which vaccines are recommended at 12 months. We also need to evaluate if the patients development is on track or if any referrals are needed. The choices include vaccines for MMR, rotavirus, meningococcus, as well as referrals for speech pathology and gross motor evaluation. B: MMR vaccine 