Defend. I people cannot set aside their own agenda for the team, and put forth a team effort they do not belong on the team. A team requires all members to co-operate in a manner that is wholly for the team's betterment, and success.
Yeats states that he was not closely acquainted with the people in the Easter Rising. He acknowledges that he only exchanged pleasantries with them before the uprising. He also indicates that he has personal reasons for disliking one person. So he is writing about the cause for which they stood, which, by inference, is important.
The comparison of the rebels to "stone" suggests that Yeats may have viewed the rebels' attitude as inflexible or not adapted to the changing times. Yeats also acknowledges the possibility that their deaths may have been "needless" because the British might keep their promises.
However, his reference to the "sacrifice" (of all who had supported Irish independence) and the rebels' "excess of love" suggest that he views their cause in a positive light. Moreover, Yeats's repeated description of the kind of change that the uprising has brought about as "a terrible beauty" suggests that his sympathies lie with the rebels.
To summarize, Yeats places a certain distance between the rebels and himself, but he supports the rebels' cause.
A dangling modifier is a phrase or clause that is not clearly and logically related to the word or words it modifies (i.e. is placed next to). Two notes about dangling modifiers: Unlike a misplaced modifier, a dangling modifier cannot be corrected by simply moving it to a different place in a sentence.
The correct answer is "The image aids readers' understanding of key concepts". A nautical chronometer made by Thomas Earnshaw is now in the British Museum. It was used in the ship that carried Charles Darwin on his voyage around the world as part of the equipment of HMS Beagle. It was not the first chronometers, but it was the first lower-cost chronometers. It was brass and it was around the size of a large pocket watch.