Final answer:
Sally cannot definitively answer which sound wave represents "Together" or "Fine" based solely on an image; additional context is needed to correlate wave characteristics with the spoken words.
Step-by-step explanation:
In the given scenario, Sally is asked to determine which wave represents the word "Together" and which represents the word "Fine" based on an image depicting two sound waves. Answer option D is correct: Sally cannot answer definitively as there is no way for her to possibly know this from the image alone, without additional contexts such as frequency and amplitude related to volume and pitch or the actual sound wave profiles of the words "Together" and "Fine". Moreover, when dealing with sound waves, the wavelength corresponds to pitch, where shorter waves represent higher pitches and longer waves represent lower pitches. The amplitude of the wave corresponds to volume, with larger amplitudes indicating louder sounds and smaller amplitudes indicating softer sounds. It is also relevant to understand the concept of superposition, where two overlapping waves can constructively or destructively interfere with each other, affecting the resultant wave's amplitude.