单选题他正在搜集证据以证明他的清白。的答案

成人教育远程网络教育函授网上考试【专科英语II】课程在线考试模拟试题正确答案解析，免费查看【专科英语II】作业答案。
题目内容：
他正在搜集证据以证明他的清白。
题目选项

He is collecting evidence what will prove his innocence.

He is collecting evidence that will prove his innocent.