According to the Philosopher David Chalmers, Which Question Refers to "The

Multiple Choice

According to the philosopher David Chalmers, which question refers to "the hard problem" of consciousness?

A) How does the brain process color in a visual scene?
B) How do the neurons in the brain produce an awareness of objects?
C) How do we know one object is farther away than another?
D) How are people able to shift their focus of attention?