"These verses explain why an individual needs salvation and how an individual can experience salvation."
Dude or Gal this is a personal Question, Since you asked this that means you havent experienced Salvation yet?
Is this for "the diary of Anne frank", cause if it is, then your answer is "she explains the spread of diptheria through their support network". i hope this has come to help you and any other people that had the same question. plus i know this is correct because i had the same question a while ago and im looking at the correct answer rn. so your welcome peps.
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Can I ask what the question is about as that’s crucial info regarding the answer
But if it’s just the connotations then b is the most suitable answer
Here is an example of present perfect: "My brother has just left for school."
Here is an example of past perfect: "I'd been to Disney Land when I was little."