<p>The remains of the Apatosaurus provide evidence of there being giants existing on Earth during the late Jurassie period. "of there being giants existing" is underlined.
A. of there being giants existing
B. that giant existed
C of there being giants existing.
Which one is correct. I think "Evidence that giant existed" have grammar error but A and C look weird.</p>
<ol>
<li><p>It’s “grammar,” not “grammer.”</p></li>
<li><p>The answer is (B), and “looks weird” is not a grammar rule.</p></li>
</ol>
<p>Agree B is correct and the singular giant is referring to the Apatosaurus. Both a and c (assuming they were supposed to be somewhat different) are wrong both because if you were going to use that phrase you would need to use “having been” rather than “being” and the word “existing” should be stricken entirely because it is redundant.</p>