阅读下面短文,从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项。
Andrew Cooper and Alex Schulze are doing a great job.While in college, they worked part-time and managed to 41for a dream vacation in BaliIndonesia. But surfing the waves didnt go 42 as they'd planned becausethe 43 wascovered with plastic.Coming from clean Florida, they were 44 to beaches which are completely free from45, so they asked someone living there why such an attractive coastline wasnt46 Thats