Try this organic(A & K 39)

Ans B..i have done this question somewhere...MS chauhan...

ya sry...dieckmann reaction is there in the syllabus..
carbonion is fromed on CH₂ attached to Nitrogen which attacks on the COOEt grp present at para to N
on hydrolysis EtOH leaves and Carboxylic acid is formed which on heating leaves as CO₂ now NH₂NH₂ in alkaline medium reduces the ketone...

...which is Wolff-Kishner reduction. Nicely done :)