From the following fare calculation, if you were refunding the return portion of this refundable ticket, what amount of the passenger facility charge would you refund?

WAS DL X/CVG DL CHI 61.02
DL X/CVG DL WAS 61.02 USD 122.04 END
ZP DCA CVG ORD CVG XT 14.40 ZP 10.00 AY 15.00 XF DCA4.5 CVG3 ORD4.5 VG3

A. 3.00
B. 4.50
C. 7.50
D. 12.00

The 'passenger facility charge' denoted by 'XF' for the return portion of the flight from Chicago (ORD) to Washington (WAS) via (CVG) adds up to $7.50. Therefore, this is the amount that would be refunded.

Explanation:

Based on the fare calculation provided, the total charges for the round trip ticket are broken down into different segments including the fare and various facility charges. The part that we're interested in refunding is the 'passenger facility charge' denoted by 'XF'. We can see it followed by three items: DCA4.5, CVG3, and ORD4.5. These denote the airport (DCA, CVG, ORD) and the corresponding charge (4.5, 3, 4.5).

For the return portion of the trip, we are considering the charges from Chicago (ORD) back to Washington (WAS) which routes via CVG. So, we should sum up the charges for ORD and CVG. This would give us 4.5 (ORD) and 3 (CVG) which equates to total of $7.5.

So, if we were refunding the return portion of this ticket, the amount of the passenger facility charge to be refunded would be option C: $7.50.

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