Rank the Following Collections of Particles According to the Total $\alpha$

Rank the following collections of particles according to the total binding energy of all the particles in each collection, least to greatest.
Collection 1: ²⁴⁴Pu (Z = 94) nuceus alone
Collection 2: ²⁴⁰U (Z = 92) nucleus, $\alpha$ particle
Collection 3: ²⁴⁰U (Z = 92) nucleus, two separated protons, two separated neutrons

A) 1,2,3
B) 3,2,1
C) 2,1,3
D) 1,3,2
E) 2,3,1