A isn't correct because its singular and you use is not "are"
so your answer is A
Answer:
If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close. Keep in mind that you should be in a safe place while counting.
I tried my best to help :)
There is a website called ''easybib,'' it will cite your source, just put the title of the website, book, journal or any other form of writing and it will cite it. Sometimes you will have to add the writer or date of the publishing. The most important things in the mla are: Authors name, date, and title.
Hope i helped!
If you would like I can add the website url in the comments sections <3