The return value type of a function is determined by ()@[ B](2)
A. Expression type in return statement
B. The type of function specified when defining a function
C. The type of the calling function that calls the function
D. Type temporarily specified on call




A. Expression type in return statement
B. The type of function specified when defining a function
C. The type of the calling function that calls the function
D. Type temporarily specified on call


answer：B