Which of the following sentences does not belong in this illustration paragraph?

Dogs have a strong sense of their pack, much stronger
than I ever realized. When our American Eskimo dog finds
us in two separate rooms, he has to pace back and forth
between the rooms until we both are finally back in the
same room. He does not take kindly to his pack being
separated. He is also a herder. Sometimes, he will simply
lie down in between the rooms so that he can keep his eye
on both of us. This is apparently not uncommon, as this
breed has an extremely strong sense of the pack.

A. He is also a herder.

B. This is apparently not uncommon, as this breed has an extremely
strong sense of the pack.

C. Sometimes, he will simply lie down in between the rooms so that
he can keep his eye on both of us.

D. Dogs have a strong sense of their pack, much stronger than I ever
realized

Me asap it's an e2020 test and it's timedread the rough draft of a student's conclusion to anargumentative editorial.(1) year-round schooling would student achievement.(2) not so much information would have to be crammed intonine months. (3) furthermore, the elimination of long breaks,particularly summer break, would significantly reduce"learning loss" and the additional time wasted at thebeginning of each academic year to reteach previouslylearned material. (4) it is clear that year-round schooling students learn and retain more. (5) the united statesis not the only country to experiment with a year-roundschool schedule. (6) although many still claim that evidenceabout year-round school and its link to higher achievement isinconclusive, these people need to open their eyes and seethat students in these schools consistently score higher oncertain assessments than students who attend schools withtraditional nine-month calendars. (7) it is about time that wereplaced our outdated and inefficient school calendars.what revision would most strengthen sentence 1?