This happens with <options> in two contexts: <select> and a text input with a datalist.

Examples:

- Select: https://a11ysupport.io/tests/tech__html__select
- Datalist: https://a11ysupport.io/tests/html/html/datalist.html

To reproduce:

1. Using MacOS 10.15 with Safari 13.0,
2. Ensure that VoiceOver is on with the default settings
3. Navigate to the above links
4. Press the tab key to navigate to the Select element or text input.
5. Cause the options to appear
  - for the select element, press space bar
  - for the datalist, enter the text "fun" to make the options appear
6. Press down arrow - notice that the next option is selected but VoiceOver does not convey anything

Expected result: when navigating through a list of options (via up and down arrow keys), the name of each option should be conveyed, along with appropriate states (such as the disabled state)