Answer: C) The starting point for an argument.
Explanation: A claim is a statement that we make like it is true. It is the starting point for an argument and, in order to be developed, it needs to be supported by facts, evidence and specific examples from reliable sources (sources that are serious and trust-worthy). When we make a claim, we also need to be prepared to defend it from any possible counterclaim (evidence that refute our claim).
The answer is that all men are created equal, endowed with certain fundamental rights, that among these are life, liberty and the pursuit of happiness.
The author probably meant that Dee is in a hurry to leave.
I'd say that the answer is A. I cheered after finishing the race.