Using technology as new as space-age fabrics and as ordinary as common

Using technology as new as space-age fabrics and as ordinary as common dry-cleaning chemicals, scientists and historians, in their attempt at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814, are hoping that it will then last another 200 years.

Meaning Analysis: Scientists and historians are using new and ordinary technology to clean and preserve the s specific American flag. By doing so they hope that they will be able to preserve this flag for another 200 years.

Sentence Structure:
Using (Noun modifier modifying "scientists and historians")
technology (element 1 of comparison)
as new as (first comparison marker)
space-age fabrics (element 2 of comparison)
and (parallelism marker)
as ordinary as (second comparison marker)
common dry-cleaning chemicals (element 3 of comparison ; element 1 is compared with element 3)
, scientists and historians (Subject) (Noun that is modified by the entire preceding noun modifier "Using technology...chemicals")
, in their attempt at (additional information about scientists and historians)
cleaning (element 1 of parallel list)
and (parallel marker)
preserving (element 2 of parallel list)
the American flag (object of the sentence)
that flew over Fort McHenry in Baltimore in 1814, (relative pronoun modifier beginning with "that" and modifying the previous noun "American flag") (Note - This modifier qualifies as an essential modifier since it begins with relative pronoun "that")
are hoping (Verb of the subject "scientists and historians")
that (connector)
it (Subject - "it" refers to the "American flag")
will then last (Verb "will last" of previous subject "it")
another 200 years. (additional information stating the duration of how long the flag is expected to last)

(A) and as ordinary as common dry-cleaning chemicals, scientists and historians, in their attempt at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814, are hoping - Incorrect.

(1) Meaning - this sentence states that by using new and ordinary technology scientists and historians hope to preserve the flag for another 200 years. While I don't find this completely wrong, I believe it makes much more sense to say that "scientists and historians (by using technology) are preserving the flag"
(2) Structure - The bigger issue out here, I believe, is the fact that "in their attempt" is placed in a COMMA PAIR thus rendering it as a non essential modifier. This information is important while deciphering the meaning of the sentence.

If we want, we can hold on to (A) and move on until we find a better answer.

(B) and as ordinary as common dry-cleaning chemicals, scientists and historians are attempting to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814, hoping - Correct.
This sentence makes much more sense that (A). "hoping" is not an action modifier stating the result of the previous clause. By using technology, scientists and historians are trying to preserve the flag and as a result are hoping that they will succeed in preserving the flag for another 200 years

(C) and as ordinary as common dry-cleaning chemicals, an attempt by scientists and historians to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814 is being made in the hope - Incorrect

(1) Modifier error - Now the noun modifier "using" is modifying the noun "an attempt". It is illogical to say that the "attempt" is using technology
(1) Note - "is being made" is correct in my opinion since "being" is correctly used as a passive progressive tense.
E.g- The tenants are being evacuated from the building

(D) but also as ordinary as common dry-cleaning chemicals, scientists and historians who are attempting to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814, hoping - Incorrect.

(1) Idiom error - we need "not only" before "but also"

(E) but also as ordinary as common dry-cleaning chemicals, an attempt by scientists and historians at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814 in hopes - Incorrect.
Errors of (C) and (D) are repeated

Correct choice: (B)