Engine oil pressure is in the yellow band at idle power. Which of the following is true?
A.A.Acceptable, no action is necessary
B.B.Normal, but requires continuous monitoring of the oil temperature
C.C.Undesirable, and permitted obly for the completion of the flight, preferably at reduced thrust setting
D.D.Unsafe and requires that the engine be shut down as soon as possible
正确答案是A