The question asks for the equivalent resistance between points $A$ and $B$, but the actual circuit/network diagram is missing from the prompt.

Without the resistor network figure, the equivalent resistance cannot be derived uniquely, because many different circuits can lead to different answers among $65\,\Omega$, $20\,\Omega$, $5\,\Omega$, and $2\,\Omega$.

What can be concluded from the provided data?

The stored correct answer is C, i.e. $R_{AB} = 5\,\Omega$

However, since the circuit diagram is not available, I cannot independently verify it step-by-step from first principles.

Conclusion

• From the stored answer, the marked answer is: $\boxed{5\,\Omega}$
• But this cannot be rigorously solved without the missing network figure.