title: Which of the following will set the font of UISegmentedControl?
body: <ul>
  <li><p><code>UIFont font = [UIFont boldSystemFontOfSize: 12.0f];
  NSDictionary attributes = [NSDictionary dictionaryWithObject: font forKey: UITextAttributeFont];
  [segmentedControl setTitleTextAttributes: attributes forState: UIControlStateNormal];</code></p></li>
  <li><p><code>[[UISegmentedControl appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"STHeitiSC-Medium" size:13.0], UITextAttributeFont, nil] forState:UIControlStateNormal];</code></p></li>
  <li><p><code>segmentedControl.transform = CGAffineTransformMakeScale(.6f, .6f);</code></p></li>
  <li><p>None of these.</p></li>
  </ul>