For the Interval Estimation Of $\mu$ When $\sigma$ Is Known and the Sample Is Large, the Proper Distribution

Multiple Choice

For the interval estimation of $\mu$ when $\sigma$ is known and the sample is large, the proper distribution to use is

A) the normal distribution
B) the t distribution with n degrees of freedom
C) the t distribution with n + 1 degrees of freedom
D) the t distribution with n + 2 degrees of freedom