<p>Hi all.</p>
<p>I am trying to figure out why I need to use "Due to" in B (because). I tried to read about it, but just couldn't understand it. Can someone please explain it.
Due to modifies adjective, but in this sentence, it shows "crossed[verb] with great care[adverb]". </p>
<p>In the interior of the Arctic islands during the</p>
<p>melting season, even small streams must be</p>
<p>crossed [with great care] [because] near-zero</p>
<p>water temperatures and the [typically] rocky and</p>
<p>unstable nature of [stream] beds.</p>
<p>Thank you</p>