The ideal by which equality of opportunity is available to any American, allowing the highest aspirations and goals to be achieved or reached.
B. Situational irony is when the outcome of a situation is contradictory to what is expected.
Differences between the following:
Belief = refers to something that a person believes as reality based on his own conviction.
Hypothesis = is also known as an educated guess based only on observation.
Laws = it refers to the body of observations. Scientific laws explain things.
Theories = It summarize a hypothesis, it is valid as long as there's no evidence to prove that this is not valid.
The answer is B, Run-on sentence.