Answer:
A method's local variables are discarded upon a method's return; each new call creates new local variables in memory.
Step-by-step explanation:
A local variable can be defined as an argument passed to a function or a variable that is declared within a function and as such can only be used or accessed within the function.
This ultimately implies that, a local variable is effective whilst the function or block is being executed (active).
Basically, all local variables can only be a member of either the register storage, static or auto (dynamic) categories in computer programming.
The true statement regarding how methods work is that a method's local variables are discarded upon a method's return; each new call creates new local variables in memory. This is so because these local variables are only allocated a storage that is within the frame of the method which is being executed on the run-time stack and would be discarded upon a method's completion or return.