For three years, while constructing a new elementary school, the Middletown school board has been sending large numbers of students from the town of Middletown to both Crestwood and Lynbrook elementary schools in the town of Edgewood. Therefore, when Middletown's new elementary school is completed next year, either Crestwood or Lynbrook will have to be closed and their student populations consolidated.

The argument above presupposes that

(A) withdrawal of the Middletown students from the Crestwood and Lynbrook schools will leave one or both of these schools seriously underpopulated
(B) Middletown's new elementary school will be too small for the projected student population
(C) the Middletown students represent only a small fraction of the total student populations at both Crestwood and Lynbrook schools
(D) absorption of extra students from Middletown has placed a serious strain on the resources of both Crestwood and Lynbrook schools
(E) students will not transfer between the Crestwood and Lynbrook schools in the next twelve months