@Howdy - Some of the articles somewhere in the arrangement have to specify the type of options that are eligible to participate in the vote.  Employee stock option should be eligible because they are issued by the company and would simply convert into common shares and make up part of the outstanding float.  They aren't sold as options but whether they are actually exercisable though is another story.  Financial options can be written by anybody and wouldn't be eligible because they are not issued by the company and do not form part of the company's capital structure.