This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
All of the following factors predispoase to Aoic dissection, Except: 
Select and explain. 
A. Systemic hypeension, B. Coarctation of aoa, C. In Ist trimester pregnancy, D. Takayasu's aeritis
C: In Ist trimester pregnancy
Answer: C: In Ist trimester pregnancy 
Explanation: Answer is C (In 1st trimester pregnancy)Aoic dissection is predisposed during Third trimester of pregnancy and not during the first trimester of pregnancy Risk factors / Predisposing factors for Aoic DissectionSystemic Hypeension and cystic medial necrosisConnective Tissue Disorders- Marfan's Syndrome- Ehler's Danlos SyndromeInflammatory Aoititis- Takayasu aeritis- Giant cell aeritisCongenital Aoic Valve abnormalities- Bicuspid Aoic ValveCoarctation of AoaAoic traumaThird trimester of pregnancy