Read the following context and choose the best option to answer the question.
Context: Finally I could swim freely , my mom yelled roll over on your back . I was fine once the screaming choking 40 pound kid was off my back . The boat finally made it over , my wife with compassion in her voice said that was really stupid . Wow , I almost drowned and all you could say was that was stupid .
Question: Why did the person have difficulty swimming ?
Options: 
- The narrator was distracted by their mother .
 - The narrator was being weighed down by a heavy person on their back .
 - The narrator was not a very good swimmer .
 - None of the above choices .


The narrator was being weighed down by a heavy person on their back .