This question is incomplete because the options are missing; here is the question statement and options:
To improve the logical flow of the paragraph, the best place to move sentence 7 is before
A. Sentence 1.
B. Sentence 3.
C. Sentence 5.
D. Sentence 6.
The correct answer is B. Sentence 3
Step-by-step explanation:
The paragraph develops an argument through different sections. This includes the thesis statement "schools should switch from using paper textbooks to using computer tablets", reasons and evidence that support this thesis, the explanation of one counterclaim, and finally, reasons to disprove the counterclaim and confirm the claim.
In the case of sentence 7 "Many experts agree that switching to tablets is important for the future of education" this provides a reason that supports the argument and due to this, it is more appropriate this sentence is placed after the thesis and before the counterclaim "Opponents argue that tablets ...".
In this context, this sentence should be placed before sentence 3 that belongs to the evidence provided to support the claim. Moreover, sentence 7 would appropriately introduce sentence 3 as they are both related to the opinion of experts about this issue.