Describe the full answer of the following problem
Problem- I pursue the inner, hidden reality, the very essence of objects in their own intrinsic fundamental nature. The author of this statement might have illustrated it with what work of his or her own?
Part 1- Hopper's Nighthawks b. Duchamp's L.H.O.O.Q c. Braque's Le Courrier d. Brancusi's Bird in Space.
I need experts help to explain the answer of the above problem.