The principal of a public elementary school complained bitterly when his school was included on a list of the fifty most academically troubled in the state. "Look around," he told reporters. "There's no graffiti in the hallways; no one is selling drugs; and math and reading scores have been going up for every grade except the fifth. Everyone on the staff here thinks it's very unfair, especially when you consider that this school didn't even have the lowest fifth-grade achievement scores in the city."
Based on the passage above, the principal most likely believes which one of the following?
A. The school in question had never been included on the list before.
B. The school in question made the list primarily because of its low fifth-grade achievement scores.
C. Students at the school in every grade except the fifth can read and do math well above their grade level.
D. Drug problems at other elementary schools in the state are much worse than those of the school in question.
E. Both urban and suburban schools should not have been included on the list, as the former obviously have difficulties unknown to the latter.
Keywords "scores have been going up except the 5th grade"..."school didn't even have the lowest fifth-grade scores"
He's clearly upset because everything is good except fifth grade scores, and still the school was placed in bottom-50. hence B.