The passing solution in the NCARB example doesn't have any columns on the lower floor. Is that correct? Are we to assume that the bearing walls will carry the load of the beams/lintels that we put over the openings? I see columns in their upper floor layout, but we aren't supposed to transfer that straight down? Does the bearing wall just pick up that load?
*Edit: Also, why do we need a beam over the entry wall, but not over the window wall?