Which of the following expressions are valid?.
Select the three correct answers.
(b), (c), and (f)
The unary + and - operators with right-to-left associativity are used in the valid expressions (b), (c), and (f).
Expression (a) tries to use a nonexistent unary - operator with left-to-right associativity, expression (d) tries to use a decrement operator (--) on an expression that does not resolve to a variable, and expression (e) tries to use a nonexistent unary * operator.