A is used for words that begin with a consonant sound;
an is used for words that begin with a vowel sound:
What a/an exciting summer it has been for Jalia.
"exciting" is the word right after a/an, and it starts with a vowel sound (short vowel e) and is a vowel.
The answer is an => What an exciting summer it has been for Jalia.
“what are some specific examples of love causing violence in Romeo and Juliet”
Number 1 would be the correct answer in this case
Answer:
Black death,stroke, respiratory illness,CAD