Which two contradictory kinds of experience did Kamaladevi have in her childhood?

The opening sentence of the passage states: 'The richness of her childhood experience came from living a life, which embraced tradition on one hand and exposure to the world of change, of questioning and questing on the other.' This explicitly identifies the two contrasting/contradictory aspects as TRADITION (on one hand) and CHANGE (on the other). Questioning and questing are facets of the same side (change). Hence Tradition and Change is correct.