Sentence Correction

In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to
visitors for cleaning and repair due to moisture exhaled by tourists, which raised its humidity to
such levels so that salt from the stone was crystallizing and fungus was growing on the walls.
A. due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing
B. due to moisture that tourists had exhaled, thereby raising its humidity to such levels that salt from the stone would crystallize
C. because tourists were exhaling moisture, which had raised the humidity within them to levels
such that salt from the stone would crystallize
D. because of moisture that was exhaled by tourists raising the humidity within them to levels so
high as to make the salt from the stone crystallize
E. because moisture exhaled by tourists had raised the humidity within them to such levels that salt
from the stone was crystallizing.

Please write the approach.

When to use due to,because and because of?

deepakk wrote:In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to
visitors for cleaning and repair due to moisture exhaled by tourists, which raised its humidity to
such levels so that salt from the stone was crystallizing and fungus was growing on the walls.
A. due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing
B. due to moisture that tourists had exhaled, thereby raising its humidity to such levels that salt from the stone would crystallize
C. because tourists were exhaling moisture, which had raised the humidity within them to levels
such that salt from the stone would crystallize
D. because of moisture that was exhaled by tourists raising the humidity within them to levels so
high as to make the salt from the stone crystallize
E. because moisture exhaled by tourists had raised the humidity within them to such levels that salt
from the stone was crystallizing.

Please write the approach.

When to use due to,because and because of?

Hello!

"Due to" has adjectival functions: it must modify a noun and it can be replaced by "caused by".
We can't replace it by "caused by" in A and B --> A and B are out.

"Because" is a conjunction (takes a clause after itself).
"because of" is a preposition (takes a noun or something that plays the role of a noun after itself). "Because of X" is usually an adverbial modifier (it doesn't modify a noun). Adverbial modifiers can modify a verb, an adjective, another adverb, and sometimes the entire clause.

We can eliminate C and D because of the parallelism: the verb form after "salt" should be in parallel with "fungus was growing".

E is a correct answer.

There're more issues and reasons for elimination in this problem.
The reasoning above is just the easiest and quickest way to deal with this problem to me.