When wiring multiple normally closed door contacts on a single zone, which of the following wiring conventions are correct?

A.
Each contact is wired in parallel with an end of line resistor in series.

B.
Each contact is wired in parallel with an end of line resistor in parallel.

C.
Each contact is wired in series with an end of line resistor in parallel.

D.
Each contact is wired in series with an end of line resistor in series.