In the code below, which lines include uses of a copy constructor for SongList? 01: int baz (const SongList& q): 02: 03: SongList foo (const SongList& s, const Song& x) 04: 05: int k 06: SongList t (s); 07: SongList w s 08: t=w.add(x); 09: k-baz (t) 10: return t.clipAt(k); 03 05 06 07 08 09 10