Answer: If the statements given in the following comprehension is true then the following will hold true in regards with the given information: Overall, people who did not travel by airplane had lower average transportation expenses than people who did.
In the given passage, we are provided with the following information:
(a) Transport disbursal accounted for ample part of currency exhausted in 1997 on pleasure trips.
(b) Almost half of transport expenses was from airfare.
(c) Bulk of individual did not take airplanes.
Therefore, from the above stated information, we can conclude that Air transport had fewer travelers compared to different means of transport, but ended up generating about half of the total transport cost.
Henceforth, the correct option suitable with the given information is (d)