A newly discovered letter by Jonathan Swift, written in the same year as Gulliver's Travels were published, shows how the biting satire that marked many of Swift's public works was reflected in his private writings as well.
(A) A newly discovered letter by Jonathan Swift, written in the same year as Gulliver's Travels were published
(B) A newly discovered letter by Jonathan Swift, written in the same year of publication as Gulliver's Travels
(C) A newly discovered letter by Jonathan Swift, written in the same year that Gulliver's Travels was published
(D) Jonathan Swift wrote a newly discovered letter in the same year as he published Gulliver's Travels that
(E) Jonathan Swift wrote a newly discovered letter in the same year of publication as Gulliver's Travels that

The OA is C.

Can some one explain why each answer choice is right or wrong (especially B and C)?