The Chicago and Calumet Rivers originally flowed into the

Question

The Chicago and Calumet  Rivers originally flowed into the St. Lawrence by way of Lake Michigan, but having been redirected by constucting  canals so that the water now empties into the Mississippi by way of the Illinois River.

A.

B. Rivers had originally flowed into the St. Lawrence by way of Lake Michigan, but they had been redirected by constucting

C. Rivers, which originally flowed into the St. Lawrence by way of Lake Michigan but have been redirected by the construction of 

D. Rivers, originally flowing into the St. Lawrence by way of Lake Michigan, but having been redirected by the construction of

E. Rivers, originally flowing into the St. Lawrence by way of Lake Michigan, have been redirected through the construction of

buzzgaurav · Answer

Straight E.
If we remove the clause ' originally flowing into the St. Lawrence by way of Lake Michigan ', the remaining sentence
 'Calumet Rivers .........have been redirected ' still makes sense.

Professor · Answer

agree with you that OA should be E.

but "  originally flowing into the St. Lawrence by way of Lake Michigan  " is not a clause. its a phrase.

buzzgaurav · Answer

Slip of tongue, oops :oops:

. Guess my hangover is still not over.

Professor · Answer

how do you say that that was your toung slip cuz u were not speaking but only drinking and smiling? :wink:

jlui4477 · Answer

OA is E

GMATT73 · Answer

Late, but (E). v~ing phrases are often tested on the GMAT.

sm176811 · Answer

Question: Whats the difference between CLAUSE and PHRASE?!!! :cry:

buzzgaurav · Answer

A  phrase  is a group of words acting as a single part of speech and not containing both a subject and a verb. It is a part of a sentence, and  does not express a complete thought .

Whereas a  clause  is a group of words containing a subject and verb. A clause is either a whole sentence or in effect a sentence-within-a-sentence.

kripalkavi · Answer

Very late, but E.

 

Nice explanation by buzzraghav! 
Adding to what he said, in this context: 'originally flowing into the St. Lawrence by way of Lake Michigan'

verb - flowing
object - St. Lawrence
subject - ? 

Thats why this is a phrase and not a clause.

The Chicago and Calumet Rivers originally flowed into the

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