What are the consequences of declaring a variable inside a function as "static"?

A$.$ It cannot be eclipsed by another variable with the same name in a more specific scope.

B$.$ It is a constant, and its value cannot be changed after it is initialized.

C$.$ It is allocated space in the heap, along with the dynamically allocated variables.

D

It is globally accessible, to any function appearing later in the same file.

E$.$

It is only allocated and initialized once, so it can remember its value from one function call to another.