B. Lockheed's current design at the time of OSP cancellation was a capsule and not a lifting body. The change to capsules occurred early in the OSP project.
Actually near the end of OSP LM had a 'winged' body:
... configuration, (they did in fact state in an official report that a capsule was actually what fit the NASA requirements, better than any lifting or winged body would) that morphed into a hypersonic lifting body design seen here:
At that point Boeing was the only company pushing a capsule and to meet the "Spaceplane" requirement they still offered an "X-37-ish" concept:
that I can't find was every pushed as hard as the capsule design. The LM change to a capsule didn't come till CEV evolved quite a bit.