Choose the most appropriate idiom for the given situation. She prepared herself for hard work as her exams were near.

1. ADrag one's feet
2. BRoll up one's sleeves
3. CBack to square one
4. DHit the books Comprehension: Read the following passage and answer the questions given below. Thhe two main reasons of this chronic and unmanageable problem is rapidly ever increasing population and defective education system. Such a huge population, India finds it difficult to make any significant success in the areas of employment, alleviation of poverty and backwardness. Every sixth person in the world is an Indian. In other words, we are adding an Australia to our population every year or to Japan every ten years. Thhere are about 31 new babies every minute or 45,000 new people daily. T hus, every year there are about 16 million more people to feed, cloth, educate and give employment. Thhis prevailing trend of population growth is quite disturbing. Unemployment rate in India is showing an increasing trend since 2011 when it was 3.5 percent. Thhe same rose to 3.6 percent in 2012 and climbed to 3.7 percent last year.