Which of the following is an example of morphemes?
◦ The sounds "t,""sh," and "th."
◦ You are learning Russian in preparation for a trip next summer. Although you are doing a good job recognizing the written signs you need to know, you are having trouble making and understanding the sounds of the Russian language.
◦ The root "believe" in the word "unbelievable."
◦ The guttural "r" sound in French.