to add strength to the stair assembly, a pressure - treated 2 x 4 may be fastened to the floor to serve as…

to add strength to the stair assembly, a pressure - treated 2 x 4 may be fastened to the floor to serve as which of the following?\npurlin\nbrace\nledger\nstrongback
Answer
Brief Explanations:
A ledger is a horizontal member fastened to a floor or wall to support the ends of joists or in this case, to add strength to a stair - assembly. A purlin is used in roof construction, a brace provides diagonal support, and a strongback is used to reinforce long, slender members.
Answer:
C. ledger