Which of the following is not a reason for using the explicit syntax instead of the implicit syntax for joins? The explicit syntax a. lets you combine inner and outer joins b. lets you separate the join and search conditions c. can be used for more than two tables d. is easier to read and understand

Consider the usual algorithm to convert an infix expression to a postfix expression. suppose that you have read 10 input characters during a conversion and that the stack now contains these symbols: (5 points) | | | + | | ( | bottom |_*_| now, suppose that you read and process the 11th symbol of the input. draw the stack for the case where the 11th symbol is