A P1P2P3P4P5 B 1P5 C 1P6P7P8 D 1P5P6P7P8 E NONE OF THESESolu

A. P(1)+P(2)+P(3)+P(4)+P(5)

B. 1-P(5)

C. 1-(P(6)+P(7)+P(8))

D. 1-(P(5)+P(6)+P(7)+P(8))

E. NONE OF THESE

Solution

You can use both

A. P(1)+P(2)+P(3)+P(4)+P(5)

But this one will take less time to calculate

C. 1-(P(6)+P(7)+P(8))