For an insurance portfolio: i. The number of claims has the probability distribution n Pn 0 0.1 1 0.4 20.3 3 0.2 ii. Each claim amount has a Poisson distribution with mean 3; and iii. The number of claims and claim amounts are mutually independent. Calculate the variance of aggregate claims. А 4.8 B 6.4 с 8.0 D 10.2 E 12.4