For a six story building (plus a basement) each of the six floors has a useable area of =3716 m2 (40.000 ft2) There are two riser systems, each serving halt of the useable area on each Moor What are the sleeves quantity and configuration required from fifth floor to sixth floor?

For a six story building (plus a basement) each of the six floors has a useable area of =3716 m2 (40.000 ft2) There are two riser systems, each serving halt of the useable area on each Moor What are the sleeves quantity and configuration required from fifth floor to sixth floor?
A . Two sleeves
B . Three sleeves
C . Four sleeves
D . Five sleeves

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Answer: D