The correct answer is "organ". In Spanish, "el órgano" refers to a part of the body that performs a specific function, such as the heart, liver, or lungs. It can also refer to a musical instrument. In this context, "organ" is the best translation for "el órgano" as it encompasses both meanings. The other options, such as "ankle," "throat," and "hair," do not accurately represent the meaning of "el órgano."