Mr. Smith, a public elementary school custodian, is a Seventh Day Adventist. His religious beliefs prevent him from working from sundown Friday to sundown Saturday. The work schedule, which requires him to work a Friday shift from 3 p.m. to 11 p.m., is set out in the collective agreement between his employer and his union. Accommodating Mr. Smith's religious beliefs would require allowing him to work hours different from those specified. The employer and the union can't agree on a means of accommodating Mr. Smith. As a result, he is dismissed from his job. What legal protected ground may be violated in this situation? O Race Sex Religion Ethnic Origin