Please answer the following question: Read the article and select the best answer. Article: I was quite close to my grandmother, Julia. We lived with her and then she lived with us. She was a very nice person, both kind and patient. She taught me to read and write when I was young and helped me to be interested in stories and poems. In my mind, my grandmother was a great tailor. She made clothes or toys better than anything you can buy in a shop today. She always made clothes for family and friends. My grandmother was also a hard worker both at home and at work. I can still remember the difficult time when we were very poor. At that time, my grandmother was already sixty years old but she worked in a hospital for a long time every day--not in the office but doing the cleaning outside and taking care of me at the same time while my mom was at work! My brother and sisters also love her. We will never forget our grandmother. She is really important in our lives and is always there for all of us in one way or another. I am proud to be her grandson. Question: While his mom was _ , his grandmother took care of him. Options: A: at home B: at work C: out of work D: in hospital
Answer:
B