In automatic evaluation of infix experiments using stack, which of the following reasons makes it impossible to apply the scanned operator immediately?

Group of answer choices

Since the operator appears between the operands, when an operator is scanned, the value of the second operand is not available

Because of the existence of precedence between different operators, we need to scan all operators before deciding which one to apply first

Because of the existence of right associativity between consecutive operators of the same type $,$ the first scanned operator is not necessarily the first operator to be applied

All of them