Answer:
Resources for American Literary Study is a scholarly periodical devoted to archival discovery and bibliographical analysis. Its subject area is the full range of works of American literature. Typical contributions include newly discovered letters and documents, checklists of primary and/or secondary writings about American authors, and biographical and compositional studies. Regular features include installments of the series "Prospects for the Study of American Literature" and a rich selection of reviews and review essays. The targeted audience of the journal is a scholarly one, from the graduate student to the senior professor.
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I believe the answer is D (However) because C (Therefore) would not make sense as it means ‘for that reason’ or ‘consequently’, B (Then) is a time connective so that would not make sense as a transition word to connect the paragraph, and A (now) could be referred to as informal depending on how you use it, and it is commonly used as an adverb of time.
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