In the context of Perl user-defined subroutines, which statement is the most accurate?

A.
Variables declared usingthe my keyword are global in scope.

B.
Variables declared using the local keyword are only available to the subroutine from which they
are declared.

C.
Variables declared usingthe my keyword are available to the calling subroutine.

D.
Variable declared using the local keyword are available to subsequently called subroutines.