First, consider the difference between "of displaying" and "to display." The correct usage is "the opportunity to..." so (A) and (B) are incorrect.

Next look at the list of three items (mastery, physical prowess, and bravado). In (C), the list is not parallel, as "bravely flaunting" is not of the same grammatical form as "mastery" or "physical prowess." (D) is parallel, but includes superfluous language--it has the same content as the list in (E), but with three additional words.

If this isn't enough to select (E), consider the last few words of the underlined portion, in which (D) changes the meaning with the phrase "also involves tricking." "Tricking the potential" is nonsensical, and certainly not what the sentence is trying to get across. Choice (E) is correct.