What option can be toggled to ensure all questions receive responses?

The option that ensures all questions receive responses is 'Force Response.' This setting is critical in survey design, as it requires respondents to answer specific questions before they can proceed to the next question or the end of the survey. By enabling the 'Force Response' feature, survey creators can prevent incomplete data and ensure that every question is addressed, enhancing the quality and reliability of the collected data. This is particularly useful in circumstances where certain information is vital for analysis or where non-responses could skew results.

In contrast, 'Skip Logic' allows respondents to skip questions based on their previous answers, which can lead to unanswered questions if the logic is not structured properly. 'Question Grouping' simply organizes questions into groups for better survey flow and does not affect response requirements. 'End Survey' is a function used to terminate the survey and does not relate to ensuring responses are collected for all questions.