Identify the chronological sequence of the following countries opting for…

Concept

Chronology questions are solved by anchoring each item to the earliest date on which it adopted the activity named in the stem — here, the launch of dedicated educational broadcasting. Rank strictly by that anchor date from earliest to latest; never reorder by alphabetical, geographical or population size.

Application

Placing each country on its educational-broadcasting timeline gives, earliest to latest:

1. The United States — public/educational broadcasting on air the earliest among these five (educational radio from the 1920s, formalised through public broadcasting).

2. Great Britain — the BBC's schools/educational service follows, established in the inter-war period.

3. Canada — the CBC was mandated to carry educational programming after the British service.

4. Australia — the ABC's educational broadcasting comes later than the North Atlantic broadcasters.

5. India — adopted dedicated educational broadcasting last among these five, with school and instructional television maturing only from the 1960s-1970s onward.

Reading off the labels in that order gives the sequence (B), (A), (E), (C), (D).

Cross-check

Confirm the order by checking each neighbouring pair: for every adjacent country, the one written earlier should have begun educational broadcasting no later than the one written after it. Because each adjacent pair above satisfies that test, the full chronological ordering is consistent.