Results is the step where you read what people answered. Every questionnaire a participant starts is a response. Open Results with Results in the top bar of the editor, next to Editor and Share. The tab is available once the survey has been activated.
A response is complete when the participant clicks Submit on the last page. A participant who leaves earlier, or saves to resume later, leaves an incomplete response.
The survey has not been activated yet. Responses are only collected while the survey is active. See Activate your survey.
Deactivating archives the responses. See Recover responses after deactivation. To end a survey and keep its results, use Stop / pause survey. See Stop, pause or deactivate a survey.
No. Answers you give in the preview are not stored.