In the code provided in sample02.ml, are the variables x and y considered local variables, or can they also be considered global variables? # An assignment statement, 2.500000 is printed x <- 2.5 y <- 5 print x print y Or are variables only considered global when there is a function present and it is declared outside & before the function, as in sample08.ml? # 9 is printed one <- 1 function increment value return value + one print increment(3) + increment(4)