Read the passage and answer the question. 'Enrolment at the community secondary school in Otukpo has doubled since the state government began the free lunch programme. This proves that free lunch is the reason parents now send their children to school.' Which of the following, if true, most weakens the writer's conclusion?
AParents in Otukpo have always valued education highly.
BThe lunch is served at midday every school day.
CThe state government intends to extend the programme to other schools.
DIn the same period, the school stopped charging fees and a new road made it reachable from six neighbouring villages.CORRECT