A conductor of length $$L$$ has a varying cross section with area $$2A$$ at P and $$A$$ at Q as shown in the adjacent figure. If it carries a steady current $$I$$, then

A

Net charge per unit volume near P is more than net charge per unit volume near Q.

B

Net charge per unit volume near Q is less than net charge per unit volume.

C

Current per unit area near P is more than current per unit area near Q.

D

Current per unit area near P is less than current per unit area near Q.