<p>i just took the sparknotes diagnostic testing and for this sentence:</p>
<p>The economic cost of purchasing a country home proved too
A B C<br>
great for the struggling family, which had only recently</p>
<p>seen its financial fortunes improve. No error </p>
<p>Isn't the which suppose to be who (cuz its a group of ppl?), and its suppose to be their.
I'm not really good at this, but I think I'm right....plez help out.</p>