【单选题】
A A.A LOW indication below main tank No.1 accompanied by a Master Caution light and system annunciation for fuel
B B.An IMBAL indication below main tank No.1 accompanied by a Master Caution light and system annunciation for fuel
C C.An IMBAL indication below main tank No.1 with no Master Caution light and no system annunciation for fuel
D D.The fuel quantity arc and digits on main tank No.2 turn amber.
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