Question

a senile person might: a. need to eat soft foods b. have trouble climbing stairs c. forget where they live d. im not sure

Explanation:

Senility often involves cognitive decline. Forgetting where one lives is a common sign of severe cognitive impairment associated with senility. While eating soft - foods can be due to dental or other issues not exclusive to senility, and trouble climbing stairs can be due to physical ailments not directly related to senility. "I'm not sure" is not a characteristic behavior of a senile person.

Answer:

c. Forget where they live