Read the following context and choose the best option to answer the question.
Context: At home , I walked about two miles everyday , ran a quarter mile , and did about 100 sit - ups . After a few weeks , this became my new routine and I actually started seeing results . So , for me , there was no magic pill , no books to read or popular diet plans to follow . It was primarily adjusting my lifestyle and finding the will power to stick with those adjustments .
Question: Why is the narrator instituting such a dramatic change in lifestyle ?
Options: 
A. They want to get bigger .
B. They want to get thin .
C. They want to get richer .
D. They want to get wealthier .


B