Doubt from Torque

Given answer B

Is my pat is only for fitzee students,l want to know about it @Aashish_Patel

What do you think this question's ans should be?

I think C, but somehow answer key says its B
Can anyone explain their answer


can you explain a bit?

l alpha ,kyu nahi kar sakte??

Srry did mistake
I think we have to choose some other axis as for that axis net torque is zero for both masses and axis pass through centre of rod so its zero for that too
Now chosing axis perpendicular to centre rod and passing through one of m mass do as u earlier did u will get ans

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