Answer:
D. Both are correct.
Step-by-step explanation:
On animalĀ“s hair coat examination it is really important to be very trough, characteristics such as brittleness and alopecia are important because they reflect if the animal has parasites on its skin that affects directly the hair coat.
Oiliness and stiffness is also very important because they reflect the animalĀ“s health condition.
In conclusion, both statements are true.