Answer :
Final answer:
The first clues that might alert the person to something being wrong, could be the dog barking wildly or the house on fire, as both these situations often imply immediate danger or severe problems.
Explanation:
Given the information provided in the question, it seems to be a question from a text comprehension or deduction activity. Based on the options provided (1) The dog was barking wildly, 2) His weekly pay was less than expected, 3) The house was on fire, 4) The door was unlocked), the first clue that alerted the person who found the bodies that something was wrong could depend on the context of the narrative or written passage. However, one might consider the dog barking wildly or the house being on fire as immediate indications of a problem. Unusual activities or situations like these usually indicate that something has gone wrong.
In most narratives, a dog barking wildly often signals danger or an unusual occurrence - it's an alarm that something is out of place. Also, a house on fire is obviously a warning sign of a catastrophe, posing immediate and severe danger. On the other hand, an unlocked door or a lesser weekly pay might not be immediate indicators of mortal danger or a serious problem, especially in regard to finding bodies.
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