What are the three audible frequency ranges?

The correct identification of the three audible frequency ranges includes infrasound (infrasonic), sound within the human hearing range (sonic), and ultrasound (ultrasonic).

Infrasonic refers to frequencies that are below the range of human hearing, which is generally considered to be below 20 Hz. This range is capable of being detected by some animals and certain scientific instruments, but it is not perceivable by humans.

The sonic range encompasses frequencies that are audible to humans, typically between 20 Hz and 20 kHz. This is the range of sound that most people can hear and is crucial for communication.

Ultrasonic refers to frequencies that are above the normal range of human hearing, generally above 20 kHz. These frequencies are often used in various applications, such as medical imaging (ultrasound) and cleaning equipment.

The other options contain terms that do not align with the established frequency classification used in sound studies. Understanding these categories is important for applications in fields such as acoustics, marine biology, and various engineering disciplines.