A 35-year-old presents within 1 hour of head trauma with brief LOC. GCS 15, no vomiting, no anticoagulant use, age <65, no signs of skull fracture, normal neuro exam. According to ACEP 2023, appropriate CT decision?AHead CT is mandatory for all mTBIBUse validated clinical decision tools to avoid CT when low riskCObserve all patients for 24 hours then CT if symptoms persistDMRI is preferred over CT initiallyEDischarge without instructionsCheck my answer