L. Underneath, in purple ink, had been added. ''And love, Fenella'', with a capital X as a kiss. I might have known Lisabeth wouldn't have walked up the stairs herself to leave the note.

Can we draw the following conclusion (choose your answer)?
Lisabeth wouldn't have walked up the stairs herself to leave a note

Choose from: a). Yes; b). No; c). It's impossible to say;
a).