another Identify Error!!!PLEAZZZ HELP!

<p>At the reception were the chattering guests, the three-tiered cake, and the lively music that have become characteristic of many wedding celebrations.</p>

<p>THe answer is NO ERROR, but i still think it should be "characteristics" cause it used "were" earlier.
Can someone help? THX :)</p>

<p>I believe the term characteristic is used in a different way here. Characteristic isn't describing the chattering guests, cake, and music. It is saying how those things are TYPICAL of many wedding celebrations now.</p>

<p>Erm... characteristic is an adjective here. Adjectives don't have plural forms. :/</p>

<p>Oh i see! It makes sense now. Thanks :)</p>

<p><a href="http://talk.collegeconfidential.com/sat-preparation/565920-some-interesting-writing-questions.html?highlight=chattering+guests%5B/url%5D"&gt;http://talk.collegeconfidential.com/sat-preparation/565920-some-interesting-writing-questions.html?highlight=chattering+guests&lt;/a&gt;&lt;/p>

<p>This question has been posted before...</p>