AAL315, Witchta Ground, departure runway 18, wind 270 degrees at

AAL315, Witchta Ground, departure runway 18, wind 270 degrees at 6 knots, __________31, _______ 29, QNH 1011, no sig.

A.dewpoint, temperature

B.temperature, dewpoint

C.temperature, gusting

D.dewpoint, gusting

正确答案是B