Can u pls answer these mcqs fasttt pls

Dear Student,
(i) The thickest conductor is D (option b). 
As we know that Resistance is inversely proportional to the cross sectional area. So area increases but resistance of conductor decreases with decrease in potential difference and increase in electric current, because resistance is directly proportional to potential difference. 

(ii) The longest wire is A (option c). 
Resistance is directly proportional to length of the conductor. As we know that resistance is inversely proportional to the electric current so here we can see the minimum value of current in conductor A. 

(ii) Option (a) shows the true relation of these conductor-
RA>RB>RC>RD

Regards

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