Men and women percieve design differently. Whether your target market is primarily women or men will influence the way your site should be designed.
Think about your current customer base. Do you deal more with women or men?
If your target market is more women than men, click "female". If more men then women, click "male." Consider this carefully.
Who will be using the website? A hardwood flooring company in the United States, for example, might be thought of as a more "masculine" company,
but women might be the primary customer as they arrange and plan for renovation projects in the home.