Critical Reasoning

Fact One: The traditional pedagogy of lengthy spelling assignments in which students study extensive word lists has seemingly become far less effective at teaching elementary school students how to spell. For example, the number of words the average second grader can spell has decreased significantly over the past three decades.

Fact Two: It is much easier for second-grade students to remember the spelling of words at the beginning and end of an assigned word list than it is for them to remember the spelling of words in the middle of a word list.
Which of the following statements, if true, would make it most plausible that Fact Two at least partially explains Fact One?

A)The average number of words on spelling assignment word lists for second graders has increased over the past three decades although the number of lists each second grader studies has remained the same.
B)On average, second graders today remember the spelling of fewer than half the words from their word list assignments.
C)The average amount of time second-grade students spend studying each assignment has decreased in recent years.
D)The average number of spelling word lists a second grader is assigned today has increased.
E)The average number of words on spelling word lists for second graders has decreased over the past two decades.