Which of these is not a single by Pink Floyd guitarist, David Gilmour?

The answer is Sunset Strip because it is not a single by Pink Floyd guitarist David Gilmour. Throughout his solo career and collaborations with Pink Floyd, Gilmour has released several singles, such as "On an Island," "Rattle That Lock," and "Yes, I Have Ghosts." However, "Sunset Strip" is not one of his official singles, making it the correct option.