The answer is B.
It cannot be A since in Gordimer's "Occasion for Loving" Gideon conveys a Black character who openly struggles with his White relationships. He knows he will never have freedom to love Ann.
It cannot be C since in "The Lying Days" traces of how her own mother took care of Black African children with her own daycare center were highlighted.
Letter B is denied in "No Time Like the Present" wherein Steve and Jabu fight against the poor education system the South African government offers.
'The sweet, smoky scent of toasted marshmallows found her nose as she licked melted chocolate from her fingertips." This is your answer as it explicitly states the sense of smell.