Read the following context and choose the best option to answer the question.
Context: what i really could n't believe was my sister works there too - and she asked him why i was fired exactly . " miriam just did n't have a happy demeanor , " he said . which is true . i was going through a hard time with dante and all .
Question: Why did your sister ask your former boss why you were fired ?
Options: 
A. My sister asked my former boss about my firing because our mom wanted to know and told her to investigate .
B. My sister asked my former boss about my firing because she thought that maybe Dante was the reason behind my firing
C. My sister asked my former boss about my firing because she is concerned about her sibling .
D. My sister asked my former boss about my firing because she wanted to get the job herself .


C