Which definition is the best description of vanishing point?

A: a black dot in space where all lines converge and all objects recede.
B: an imaginary point in space where all lines recede and all objects converge.
C: the use of a horizon line to make objects appear to recede.
D: an imaginary point in space where all lines converge and all objects recede.

D: an imaginary point in space where all lines converge and all objects recede.