Based on the text, what is the main result of scientists having studied the plesiosaur?

the people who claim to have seen nessie can be proven to have been dishonest.
the sightings have decreased rapidly since the studies were released.
we can conclusively rule out the existence of modern plesiosaurs.
we know enough to rule out a plesiosaur as a likely nessie creature.

1.3.6 practice: examining the founding principles the declaration of independence we hold these truths to be self- evident, that all men are created equal. that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness.- that to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed,- that whenever any form of governments becomes destructive of thee ends, it is right of the people to alter or to abolish it, and to institute new government, laying its foundation on such principles and organizing its power in such form, as to them shall seem most likely to effect their safety and happiness . summary