<span>The Answer is 3; enlargement</span>
The answer is A. Sorry if i'm wrong.
The robbery was planned by Ram Prasad Bismil and Ashfaqullah Khan. It was executed by Bismil, Khan, Chandrashekhar Azad, Rajendra Lahiri, Shachindra Bakshi, Keshab Chakravarty, Murari Lal Khanna(Gupta), Banwari Lal, Mukundi Lal Gupta and Manmathnath Gupta.