Calculating the picture b) circuit shows that wire resistance only cancels for Rt = R3. So if you use it with a Pt1000 sensor and R3 = 1k, you get a certain reduction of wire resistance influence, but no cancellation. For Pt100, the effect is only minimal. Thus I don't recognize it as a correctly designed three-wire circuit.
The 10k resistors can be understood as protection (overvoltage, ESD) means, the purpose of the 100 k resistors isn't obvious and probably not well considered.
As a general comment, as with all voltage divider RTD circuits (in contrast to current source excitation), you get a non-linear transfer function that has to be corrected in software.