Cippo

"in the years 1982 to 1987" should be "in the years 1982 and 1987" or "in the years btw 1982 and 1987" A for me

D for me. OA ?

I vote for E for the same reason 12rk34 highlights

It think the problem is related with the end of the phrase, "to guide" is better than "for guiding" hence A is the answer.

D for me.

Clearly D.

absolutely E!. agree with rajatmeh explanation

I vote for C. The "desired effect" we can suppose is to sell more tickets hence a "an increase in the number of passengers". But what about if the increase number of passengers is relatd with reward tickets? This can be an alternative explanation to the incresed number of passengers.

got it! D

I was btw B and E. I chose, B....

my vote: E

ies D for me to

OA? Thanks

I got on B for parallelism. In C "their" is not clear who is refering to

E for me, this option solves the references clear