l:_:l a} Logical data independence is the capacity to change the internal schema without having to change the external schema. l_l b} Logical data independence is the capacity to change the conceptual schema without having to change the external schema- /. . l c} Physical data independence is the capacity to change the conceptual schema without having to change the external schema. l _l d) Physical data independence is the capacity to change the internal schema without having to change the conceptual schema