Which of the following refers specifically to the sounds made from the air coming through the mouth and not the nose?

The term that refers specifically to the sounds made from the air coming through the mouth is phonetic sounds. Within the study of linguistics and phonetics, phonetic sounds encompass all sounds produced by the human vocal apparatus, particularly those articulated with the airflow coming out through the mouth. This includes a wide range of speech sounds, which are classified based on various properties such as how and where the airflow is manipulated.

Nasalization refers to the quality of sound produced with the airflow through the nasal cavity, indicating that it is characterized by resonance produced in the nose, which is not the focus of the question. Aspiration describes a burst of air that accompanies certain sounds, particularly voiceless stops, and is relevant to pronunciation but does not specifically define the sounds coming solely from the mouth. Labial sounds are a class of phonetic sounds articulated with the lips, so while they are made with air from the mouth, they do not encompass all mouth-generated sounds. Thus, phonetic sounds broadly captures the essence of sound production designated in the question, signifying the air passing through the mouth.