The diagram illustrates a circuit arrangement containing three resistors. Two of them, labelled $R$, are the same. The remaining resistor has a resistance of $5.0\,\Omega$. The resistance between Y and Z is determined to be $2.5\,\Omega$. What is the resistance between X and Y?
- A$0.30\,\Omega$
- B$0.53\,\Omega$
- C$1.9\,\Omega$
- D$3.3\,\Omega$