单项选择题

PHUKET, Thailand--Narkis Koral, 23, and Oren Mesika, 24, had no sense of the terrible tsunami (海啸) that hit Southeast Asia. They were having a good time on the island of Koh Chang in Thailand and only learned of their present situation hours later, through friends who received phone calls from home.
Even though the pair, both from Arad, escaped the tsunami’s anger, it did not change the fact that their parents were worried.
"Our mothers worried a lot," says Koral. "They asked us to leave immediately and return to Israel. They offered to arrange flights, anything we wanted, just return."
Dana Kuchansky’s father is also worried Kuchansky, 28, and her partner were in Kofun, a small island hit hard by the tsunami. After a night spent on the top of the mountain in the center of the island, the two were taken for free to Bangkok, where they were expected to fly to Israel.
On the telephone, the worried father made sure his daughter received the replacement tickets lost in the tsunami. 15 minutes later, he called her again, to remind her of the flight number.
Most of the Israelis visiting Thailand are young and on a limited budget (预算). Their parents are used to having insufficient contact (联系) with their children. In most cases, this contact is when the phone call or the use of the Internet is cheap, even if the difference between "expensive" and "cheap" is less than 50 agorot, or cents.
In one case this past week, a mother called the mobile telephone of each of the six embassy (大使馆) staff in Thailand, one after the other. The same duty officer answered all six.
The common reaction of both parents and children, once telephone contact was made, was sobbing with relief (慰籍) that the ordeal (严峻考验) had left them unharmed.

According to the text, Narkis and Oren（）

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