Can you please explain this error to me?

<p>The original sentence is: </p>

<p>Two coast guard crew were dispatched to check an anonymous informant’s warning, and he had observed a boatload of illegal immigrants approaching Florida’s west coast.</p>

<p>The choices are:</p>

<p>…check the warning of an anonymous informant that he had observed…</p>

<p>or</p>

<p>…check the anonymous informant’s warning saying he had observed…</p>

<p>Which one is the correct correction? And why?</p>

<p>If those were the only choices I had, I'd go with the first. It sounds weird, but it's more correct than the second. According to the second, the warning is saying he had observed something.</p>

<p>Thanks.....</p>

<p>I really can't understand why we only have those two choices, and I don't know how to correct that sentence, because I don't agree with those two choices.</p>

<p>Well, one of them is the corect answer according to the book and the other is the one I think is correct. The other choices as totally wrong and irrelevant.</p>