Why Was Alex the Parrot Taught to "Speak" Rather Than

Multiple Choice

Why was Alex the parrot taught to "speak" rather than being taught a sign language or an artificial language?

A) Grey parrots lack the dexterity to use a computer touchscreen.
B) Researchers could not distinguish among the gestures made by parrots.
C) Grey parrots have vocal apparatuses that allow them to mimic many human sounds.
D) Alex refused to interact with the artificial language apparatus.