In the Following Figure, the First Panel Shows a Market

In the following figure, the first panel shows a market situation prior to regulation and the second panel shows the effects of regulation.Figure 14.2
In the figure,
D: Demand curve for automobiles
S₁: Supply curve of automobiles prior to regulation
S₂: Supply curve of automobiles after regulation
FG: Clean up cost per unit
-Intel microchips are an input in the production of a computer. When the demand for the computer declines:

A) the quantity demanded of Intel microchips increases.
B) the quantity demanded of Intel microchips declines.
C) the demand for Intel microchips increases.
D) the demand for Intel microchips decreases.
E) there is no change in the demand for the Intel microchips.