28. The teacher wrote down the counting numbers starting from 1 continuously on the blackboard: $1,3,5,7,9,11 \cdots$ After writing, the teacher erased two of the numbers, dividing the sequence of odd numbers into 3 segments. If the sums of the first two segments are 961 and 1001 respectively, then the sum of the two odd numbers erased by the teacher is $(\quad)$
A. 154
B. 156
C. 158
D. 160