Determine the Indicated Probability for a Poisson Random Variable with the Given

Multiple Choice

Determine the indicated probability for a Poisson random variable with the given values of $\lambda$ and t .
$\lambda = 0.8 , t = 8 , P ( 5 )$

A) 0.1468
B) 0.1487
C) 0.0005
D) 0.9995