A. The variables used inside function are called local variables.
B. The local variables of a particular function can be used inside other functions, but these cannot be used in global space.
C. The variables used outside function are called global variables.
D. In order to change the value of global variable inside function, keyword global is used.

Solution

B. The local variables of a particular function can be used inside other functions, but these cannot be used in global space.