There's were four or five different teams of builders renovating Penny's home. On some days there were up to twenty workmen there.
Perhaps she didn't want to leave the £8,500 at her home with so many people there.
Otherwise why is she carrying so much money with her that day? She's due at work at 10.30am. Who is the money for?
A. The person she said she was meeting at 9.50am?
B. Someone she was meeting later at work or during her workday?
C. Someone she was meeting after work before she got back home?
D. Someone she planned to meet at a later date?
With options D, she would be carrying the money with her, rather than leaving it at home with so many people wandering about.