Is a curved set of stairs serving as the only set of stairs to the second floor of a two-story house considered an exit stair?

 options:

a$)$ 

Yes, and the curved stairs must conform.

b$)$ 

Yes, all stairs within a house are considered exit stairs.

c$)$ 

No$,$ as long as the second story has direct access to a balcony.

d$)$ 

No$,$ the stairs are considered to be access to exit stairs.