You Want to Estimate the Average Gas Price in Canada

You want to estimate the average gas price in Canada for a litre of regular unleaded gasoline.You take a random sample of prices from 100 gas stations,recording an average cost of $1.37 and a standard deviation of $0.11.Create a 99% confidence interval for the mean price per litre of regular unleaded gasoline.

A) ($1.36,$1.38)
B) ($1.30,$1.44)
C) ($1.36,$1.38) .
D) ($1.22,$1.52)
E) ($1.34,$1.40)