Explanation:
Box 1: Yes
There are three voice elements, each with a different voice.
Note: Use voice elements
At least one voice element must be specified within each SSML speak element. This element determines the voice that's used for text to speech.
You can include multiple voice elements in a single SSML document. Each voice element can specify a different voice. You can also use the same voice multiple times with different settings, such as when you change the silence duration between sentences.
Box 2: No
There are two accents only: two voices using en-US, and one voice using en-GB.
Note: Adjust speaking languages
By default, multilingual voices can autodetect the language of the input text and speak in the language of the default locale of the input text without using SSML. Optionally, you can use the
<lang xml:lang> element to adjust the speaking language for these voices to set the preferred accent such as en-GB for British English.
Box 3: No
The third voice is configured with style advertisement_upbeat and styledegree set to 2.
Reference:
https://learn.microsoft.com/en-us/azure/ai-services/speech-service/speech-synthesis-markup- voice