— How tall he is!

— Yes, he is _____ than any other student in his class. [ ]

A. tall

B. taller

D. tallest

根据《空气质量飘尘中苯并[a]芘的测定乙酰化滤纸层析荧光分光光度法》（GB／T8971-1988），用超细玻璃纤维滤膜采样，样品滤膜可用于测定空气中的有机化合物。