[单选题]
As more resistors are added in series to a c2hx7 8d/zidzroul giy54z 079,y0 lmdw-khxconstant vol:tpcb hma3+bz32py + rtage source, the power supplied by thebzc 3 apy+rbht3:m2p+ source
A. increases.
B. decreases.
C. does not change.
D. increases for a time and then starts to decrease.
