Route	Chiang Mai—Luang Prabang	Chiang Mai---Koh Samui
Day	2,3,5,7	Daily
Flight	QV 645	PG 242
Dep.（出发）	15: 05	9: 55
Arr. （到达）	16: 05	11:40
Airfare （机票费用）	5090THB	5090THB

Note:
The days of the week are:
1. Monday   2. Tuesday   3. Wednesday    4. Thursday
5. Friday   6. Saturday  7. Sunday
Lao Airlines has a flight from Chiang Mai to Luang Prabang on           .
A. Monday                 B. Thursday                  C. Friday
If Lisa wants to travel from Chiang Mai to Koh Samui, which flight should she choose?
A.QV 645.                 B. TG 129.                   C. PG 242.