When i was able to hold his little hand in mine, it was as if the sky had opened up and rained down pure joy. this sentence uses which of the following to communicate an idea?

Who is there i need someone to text me on the comments i am bored. love you who see

Which would be the most credible source for researching the effects of smoking? letter from your grandfather web page about someone’s lung cancer report prepared by a tobacco company research article in a scientific journal

If the author's last name is mentioned in the sentence, it does not need to be included in the in-text citation.