Suppose that airplane operate indenpendently and fail with probabitily equal to 0.4. Assuming that a plane makes a safe flight if at least one half of its engines run, then
A. P(2engine plane)lt P (4 engine plne)
B. P(2 engine plane) gt P(4engine plane)
C. P(2 engine plane) = P(4engine plane)
D. P(2 engine plane) = 2P(4engine plane)