A unit is creating a smoke-free unit, and recently implemented new rules: smoking is prohibited in any place in the unit. Some smoking employees have failed to adapt to this requirement, but have ended in failure. Because the unit stipulated that the system change must go through the following procedures: Only when more than 15% of employees sign the proposal can all employees vote on it. As a result, the smoking employees' proposals were rejected by the majority of employees. The most likely conclusion to be drawn from the above conclusion is that. ['Less than or equal to 85% of employees who voted negative.', 'Less than 15% of employees signing proposals for smoking employees.', 'No less than 15% of the employees who signed the proposal of smoking employees.', 'An employee bookmarked the word, but voted again during the vote.']