Modules are represented by rectangles with stripes.

Which of the following is NOT true about converting infix expressions to postfix expressions?

a) the operands always stay in the same order with respect to one another b) the operators always stay in the same order with respect to one another c) an operator will move only “to the right” with respect to the operands d) all parentheses are removed

The abstract data structure that is often used to store data represented as a table is called a(n) ________________.

Fill in the blank(s) with the appropriate word(s).