<p>I don’t understand the reasoning behind this one.
The answer is B.</p>
<p>The research study reveals startling proof of a constant changing seafloor that comprises the major part of the underwater landscape. No error</p>
<p>Anyone know?</p>
<p>“constant” should be “constantly”</p>
<p>constant is modifying changing. how is the seafloor changing? constantly, not constant. essentially, it should be in adverb form since adverbs modify adverbs, verbs and adjectives.</p>
<p>i would recommend getting a book called <i>Up Your Score: The Underground Guide to the Sat</i></p>
<p>I got an 80 on the Writing portion of the PSAT, so I’m good, thanks. Very rarely do I make an error in that section.</p>
<p>how would u have a constant seafloor anyway? It must be mudifying changing. its an adverb. if not there should/could be a comma</p>