As I laid in bed last night , I started to think about what buddy boy 's arms looked like . At first , I could n't conjure up the memory . As I thought about it though , there they were . Strong .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for knowing the arms are strong ?
Options:
- Because they were told about it .
 - Because of how much they can lift .
 - Because they lifted her up .
 - Because of big muscles .


Because of big muscles .