WASHINGTON (Reuters) - Nearly three quarters of U.S. adults believe that businesses should not have the right on religious grounds to deny services to customers based on their sexual orientation, a Reuters/Ipsos opinion poll released on Monday showed. In the poll, 72 percent of respondents said business owners, because of their religious beliefs, should not be allowed to refuse to serve customers based on sexual orientation, while 14 percent said they do have that right. Another 9 percent said businesses have the right “only in certain circumstances” and 6 percent said they do not know.