Answer:
Option B, Alois Alzheimer
Explanation:
In 1901, Germany psychiatrist Alois Alzheimer discovered the first case of the Alzheimer's disease in a 50-year-old female patient, following her case until hear death in 1906. A few years after, a clinical report was written and published by Emil Kraepelin that include this patient's case and named the disease after Alzheimer, among other titles for the condition (e.g. senile dementia).
Thus, the correct choice is option B, Alois Alzheimer.