A battery with an electromotive force (e.m.f.) of $6.0\,\text{V}$ and negligible internal resistance is linked to three resistors as illustrated. The resistance of each resistor is $4.0\,\text{k}\Omega$. What is the current in resistor $X$?
- A$0.25\,\text{mA}$
- B$0.50\,\text{mA}$
- C$0.75\,\text{mA}$
- D$1.0\,\text{mA}$