Replacing call-to-action with interactive Email Form is the correct answer. This option allows you to include a form in your email that subscribers can fill out and submit without leaving their inbox. This can increase the response rate of your email by making it easier and faster for subscribers to provide feedback on their shopping experience. You can also use interactive email forms to collect other types of information from your subscribers, such as preferences, ratings, or surveys. A Salesforce Survey block called in by an AMPscript function is not a valid option, as this option requires subscribers to click on a link and leave their inbox to complete the survey. Making the call-to-action button that links to the feedback form bigger and with red background is not a good option either, as this option may not be enough to motivate subscribers to click on the button and provide feedback. You can learn more about this in the Interactive Email Form module on Trailhead.