Elephants have an exceptional memory, enabling them to find their way in areas which they have not frequented in many years. A new zoological research has discovered that this ability can be further enhanced by fixing the leading elephant with blinders, thereby greatly limiting its field of vision.
Which of the following hypotheses best explains the contrast described above?
A.) The leading elephant is able to avoid stumbling over even with the proposed blinders.
B.) Elephants' memory is not visual, but rather relies on their sense of smell
C.) Elephants with blinders on find it harder to recognize surroundings, because it is harder for them to compare the current visual sensation with the remembered one.
D.) An elephants' sense of smell, which is its best memory aid, is hindered by visual distractions.
E.) Elephants' eyes are relatively weak and a secondary sense, whereas an elephants' sense of smell is particularly advanced.