What are the clinical signs and treatment options for a canine patient with dry keratoconjunctivitis?

The most common clinical signs of dry keratoconjunctivitis are conjunctival hyperemia and mucus production.
The presence of mucus is always present in conjunctivitis related to a lack of tear production.
The use of corticosteroids is recommended as a treatment option for dry keratoconjunctivitis.
a) Only I is correct.
b) I and II are correct.
c) I and III are correct.
d) All statements are incorrect.