Q: Read the following article and answer the question. Article: Over thousands of years, human beings have been learning about more and more about this world, and have figured out many ways to avoid risks and make our lives easier. Even in ancient times, we used fire to frighten away animals, built simple boats to cross waters, and armed ourselves with sharpening stones and sticks. Nowadays, with advanced technology and instrument, people know the world better than ever. It's surprising how much people already know about this world and how much we've changed our lives by using the knowledge we have. But if you think we know everything, that's wrong. I guess sometimes we have to accept the limitation on our understanding of the world. No matter how much we're already known about the world, there are things that remain mysterious. I learned this from my pregnancy which ended in the 6th month, due to a placental abruption . I started to see my OB/GYN every month, taking vitamins regularly, doing all the lab tests to make sure we were expecting a healthy baby. All the results looked promising, and we thought we would have a healthy baby girl in January next year. Even in the week before placental abruption, when I was in hospital because of a sudden bleeding, doctors didn't believe there were any bad possibilities after reading my blood tests. Unfortunately it still happened. Later, I asked my doctor "So what caused this?" She said, "I don't know. We probably will never know." After leaving the hospital, I sometimes do feel frustrated for what happened. But I already accept the fact that there are simply things that we do not know. No matter how well you plan and monitor your life there are uncertainties that can not be predicted and thus can not be avoided. _ Her name was Janet. She came to the world in April, and left us 6 months later. Though we never had the chance of meeting her, she is always our beloved daughter. In the late May 2013, during our first OB visit, we saw a little heart beating happily inside its mother. We couldn't even tell that was a baby, but we... Question: The writer's detailed description of Janet's growth shows that _ . Answer:

Choose your answer from:
(A). the world is hard to predict;
(B). medical science is powerful;
(C). the mother's love is endless;
(D). life is full of fun and mystery.;
A:
(C).