12. Jia statistically analyzed certain dates of some months in 2019, denoted as $121, 122, \cdots, 1228, 1129, 1130$ and 731, with the average being $\mu$, the median being $M$, and the median of the remainders of each number modulo 365 being $d$. Then ( ).
(A) $\mu<d<M$
(B) $M<d<\mu$
(C) $d=M=\mu$
(D) $d<M<\mu$
(E) $d<\mu<M$
12. E.
13 data were calculated to be
$$
M=16, d=14.5, \mu \approx 15.7 .
$$