Answer:
Structure your question well
The subject of the sentence "I read your blog post on the website" is "I". You can find the subject by asking yourself what is the person, place, or thing that is doing the 'doing' or is 'verbed'. Hope this helps! :)
What could be happening in this story is a character was off to school and left their phone at home on the kitchen table
The 4th one is correct! :)