`F_(pp)`,`F_(nn)` and `F_(np)`are the nuclear forces between proton, neutron-neutron and neutron-proton respectively. Then, relation between them is,

Options

A. `F_(pp)` = `F_(n n)` != `F_(np)`
B. `F_(pp)` != `F_(n n)` = `F_(np)`
C. `F_(pp)` = `F_(n n)` = `F_(np)`
D. `F_(pp)` != `F_(n n)` != `F_(np)`

Answer

C

Explanation

Nuclear forces are charge independent-hence,
`:.``F_(pp)` = `F_(n n)` = `F_(np)`