The correct answers are B. Happy dagger and E. Timeless end
Step-by-step explanation:
In literature, an oxymoron refers to a literary and rhetorical device in which two or more words with contradictory or opposite meanings are placed together in order to create a complex concept or show the paradox of some situation. Additionally to this, in the case of Shakespeare works including "Hamlet" and "Romeo and Juliet" it is common to find combinations of two words or phrases that include oxymoron.
This can be seen in the excerpt from Act V, scene III of "Romeo and Juliet" in the words "happy dagger", because the word "dagger" had a negative connotation and therefore linking it to the word "happy" seems contradictory, and in the words "timeless end" because the word "timeless" means eternal, but the word "end" means there is a limit of time. This means the phrases from the passage that are oxymorons are "happy dagger" and "timeless end" considering in these sentences two contradictory words are placed together which is exactly what oxymorons are about.