Answer: I think the Valorous Unit Ribbon
Explanation: I don't really understand what's it asking but I sort of did to get this answer!
Use a code validation tool.
The most likely problem which led to the lack of sound after the installation of the new sound card is that the '<em>sound card is not recognized or incompatible</em> '
- The sound card is an hardware which is installed into a computer in other to allow the the system produce audio signal.
- Without a sound card installed into a computer, then such computer would not be able to perform <em>audio</em> <em>input or produce audio signals</em>.
However, when a sound card is present and, the computer fails to produce audio signal, then the most likely problem is that, the <em>sound card installed isn't recognized</em>.
Learn more :brainly.com/question/25055825
<span>Traffic Class header field is known as the priority field.</span>