\[\alpha -\]particles of energy 400 KeV are bombarded on nucleus of\[_{82}Pb\]. In scattering of \[\alpha -\]particles, its minimum distance from nucleus will be [RPET 1997]

• A.            0.59 nm                                  
• B.            0.59 Å
• C.            5.9 pm                                    
• D.            0.59 pm