B. The safari stopped at an oasis, a moist, fertile spot in the desert.
Explanation:
An appositional phrase is one that explains a term that has been spoken before. On the basis of this, we can conclude that the sentence that presents an appositional phrase is "The safari stopped at an oasis, a moist, fertile spot in the desert," where the phrase "a moist, fertile spot in the desert" explains the word "oasis".
1. The band show was very busy. 2. * I’m literally carrying a car right now. 3. The movie had very incredibly miserable in many of part. 4. Alexa is directly and the same as a monkey.
