Q: This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
The 1971 Local Government White Paper proposed abolishing county boroughs, which would have left Plymouth, a town of 250,000 people, being administered from a council based at the smaller Exeter, on the other side of the county. This led to Plymouth lobbying for the creation of a Tamarside county, to include Plymouth, Torpoint, Saltash, and the rural hinterland. The campaign was not successful, and Plymouth ceased to be a county borough on 1 April 1974 with responsibility for education, social services, highways and libraries transferred to Devon County Council. All powers returned when the city become a unitary authority on 1 April 1998 under recommendations of the Banham Commission.
A:
What was the population of Plymouth in 1971?