5Ω, Rc=4.67Ω

(a) Ra=4Ω, Rb=4.30Ω, Rc=4.66Ω

(b) Ra=3Ω, Rb=4Ω, Rc =5Ω

(c) Ra=5.2Ω, Rb=4.2Ω, Rc =4.89Ω

I have been asked this question in an interview for internship.

The doubt is from Measuring Resistance the Wheatstone Bridge and Delta-to-Wye (Pi-to-Tee) Equivalent Circuits topic in portion Simple Resistive Circuits of Electric Circuits

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