![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
S1:Are nautical charts current and corrected? S2:Yes,it is,Sir. Q:What does the first speaker want to know? A. The condition of the speaking tube. B. The condition of the deviation chart. C. The availability of nautical charts. D. The condition of nautical charts.