某知识比赛共10题，规定答对一题得2分，不答不得分，答错扣1分。小王参加比赛后共得3分，已知小王回答题目超过5题，问小王第一题答错的概率是多少？

A. [img]https://img.shiyebian.net/gwyshijuan/706/25.png[/img]
B. [img]https://img.shiyebian.net/gwyshijuan/706/26.png[/img]
C. [img]https://img.shiyebian.net/gwyshijuan/706/27.png[/img]
D. [img]https://img.shiyebian.net/gwyshijuan/706/28.png[/img]