I have a form that includes three questions, say QA, QB, and QC. I want to ask different questions depends on the answers to previous page. Say if I answer "Yes" to the question on the previous page, i want to ask/show question QB and QC on the current page. If i answer "no" to the question on the previous page, i want to ask/show question QA and QB on the current page. I know how to pass the values from previous page to the current page. But how do I show certain questions depending on the values of other variables?