Which one of the following approaches did not emerge during 1970s?

The correct answer is Option (1) → Regional approach

In the 1970s, unhappiness with the quantitative revolution led to three new schools of human geography: humanistic, radical and behavioural.

Option (1) Regional approach — Did not emerge in the 1970s. Regional analysis was the approach of the later colonial period, long before the 1970s.

Option (2) Humanistic approach — Emerged in the 1970s. It is one of the three new schools of that decade.

Option (3) Radical approach — Emerged in the 1970s. It is one of the three new schools of that decade.

Option (4) Behavioural approach — Emerged in the 1970s. It is one of the three new schools of that decade.