Which of the following features of a creative personality is NOT mentioned in the interview

A．how I could contribute to water conservation.
B．how much of what I did contributed to freshwater shortage.
C．what behaviour could be counted as freshwater-saving.
D．what efforts I should make to save fresh water

A．remained the same as usual.
B．became more friendly with Mr. Cattanzara.
C．began to like his neighbours more than ever.
D．continued to read the books from the list.