<ol>
<li> I would be happy to come by and size up her situation
I would be happy to come by and size the extent of her situation</li>
</ol>
<p>Why is the first correct? Weird question in my opinion… seemed like slang.</p>
<p>“Size up” is an informal phrase that means “judge.” “Size” by itself means nothing like that, so you need the “up.” I guess it comes from the visual that you are measuring up to down (“eyeing” what is in front of you) when forming a judgment about the situation. It’s basically an idiom. Where did you get this question from?</p>
<p>Believe it or not, this is a previously administered ACT. I can’t believe they had the balls to put this question! :D</p>
<p>wrong forum maybe?</p>
<p>Nah. ACT forum is dead. Grammar is still on the SAT</p>