One or more of the sentences (A, B, C, D) is/are incorrect considering standard English usage. Identify the incorrect sentence(s).
A. A day after a controversy broke out over medicines manufactured by the guru, the Health Ministry said that they would put the medicines to the test.
B. The government will not scrap the Delhi-Mumbai airport modernization plan.
C. In the district town, the children told the committee members that they were not consuming the meals served by the schools.
D. The committee would keep watch on the quality of grain.