Relationship Of X To Y Or Relationship Bet'n X & Y

Question

The relationship of smoking and lung cancer have been firmly established, yet people continue to ignore warnings, jeopardizing their health and that of others. 

(A) The relationship of smoking and lung cancer have been firmly established, yet people continue to ignore warnings, jeopardizing their health and that of others. 
(B) The relationship of smoking to lung cancer has been firmly established, yet people continue to ignore the warnings, jeopardizing their health and that of others. 
(C) The relationship of smoking to lung cancer has been firmly established, yet people continually ignore the warnings which jeopardize their own health and that of others. 
(D) The relationship between smoking and lung cancer has been firmly established, yet people continue to ignore warnings, jeopardizing their own health and that of others. 
(E) The relationship of smoking with lung cancer has been firmly established, with people continuing to ignore the warnings and jeopardizing their own health and others. 

Please explain the correct answer. 

Thanks in advance.

srijay007 · Answer

Will go with D
relationship between X and Y ...

SmashingGrace · Answer

D it is. Idiomatic usage... :-D

go2venkat · Answer

I selected D as my Answer. But the Combridge CAT -- the source of this question-- declared B as the Correct answers . given explanation is that 
the relationship of X to Y is the Idiom.

I totally disagree with the explanation.

enigmatic007 · Answer

hello

 between comes when one compares two things ''between A and B, B is the better player''

 relatinship of X to Y is also correct ... the qeUstion is are we ''comparing TWO things here or are we just stating afact if ist the formr than betwwen is thr corecft option and if its the latter than to is the pick however I too felt D was the ans but guess B too s correct in its oown way any more explanatios ...

 Have Fun.

lastochka · Answer

for me it came down between B and D.
D has redundant 'their own health' whereas 'their health' is more conscise 

sometimes these little details really help

enigmatic007 · Answer

sometimes it pays to be very ''obeservent'' I guess!

Anonymous · Answer

How do we know for sure that 'their' in choice D refers to people and not warnings?

Relationship Of X To Y Or Relationship Bet'n X & Y

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