The plane was delayed due to the bad weather.

=The plane was delayed because of the bad weather.

_________ the fact that different prices affect different people, there are many varying measures of inflation in use.

A)Because

B)Since

C)As

D)Due to

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(D)

because + S   +V

since +S   +V

as  S  V

as since because     conj.

due to        歸因於...  ; 由於......

例:

Their failure was due to a lack of care and attention. 

The company's financial losses were due to poor management. 

Special thanks are due to the sponsors of the event.