This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
A 36-year-old male patient has a family history of dementia want Genetic testing type 
Select and explain. 
A. Genetic carrier test, B. Pre symptomatic test, C. Post symptomatic test, D. Genetic pre symptomatic test
A: Genetic carrier test
Answer: A: Genetic carrier test 
Explanation: (A) Genetic carrier test [Harrison18 -3307; Harrison17 - 2541, Harrison16 - 2399