Your first option is correct.
EXPLANATION:
your first option is correct because this is a grammar question. When you use "an" you're using it in front of a vowel. The only sentence starting with a vowel is the first one. The others don't sound right when you use "an" in front of it instead of "a".
I hope I helped! :)
The address delivered by President J.F Kennedy at Rice University, in Houston, Texas on the Nation's Space Effort, which was given on the 12th day of September, <span>1962 has been considered to be a great speech because i</span>t persuaded people to support space exploration.
<u>Janet Kainembabazi Museveni</u> is the wife of the president of Uganda ~
Answer:c
achieved their intended purpose the best? What from their piece helped them to achieve their intended purpose?
