Read the following context and choose the best option to answer the question.
Context: 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 .
Question: What may be the reason for knowing the arms are strong ?
Options: 
A. Because they were told about it .
B. Because of how much they can lift .
C. Because they lifted her up .
D. Because of big muscles .


D