Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

[Q]: You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you. There are four basic types of blood; A, B, AB, and O. A simple test can make sure of a person's blood type. Everybody is born with one of these four types of blood. Blood type, like hair color1 and height, is received from parents. The four groups must be transfused carefully. A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group; therefore, it is often called the universal donor . For the opposite reason, AB is sometimes called the universal recipient . However, because so many reactions can happen in transfusions , patients usually receive only salt of plasma (liquid part of blood) until their blood can be matched as exactly as possible in the blood bank of a hospital. In this way, it is possible to prevent the transfusion from any bad reactions.
[A]: People with type A blood can receive type .

[Q]: Plunkett finished the game with 16 out of 25 pass completions for 172 yards and a touchdown. Theismann threw for more yards than Plunkett (243), but was just 16 out of 35 and was intercepted twice. He was also sacked six times. Branch was the top receiver of the game with six receptions for 94 yards and a touchdown. Guy punted seven times for 299 yards (42.7 average), with 244 net yards (34.8 average) and planted five of his seven punts inside the 20. Martin recorded a sack, a pass deflection, and a fumble recovery. Riggins, who had rushed for over 100 yards in his last six postseason games, was held to 64 yards and a touchdown on 26 carries, with his longest gain being just 8 yards. Brown was their top receiver with three receptions for 93 yards. Tight end Clint Didier caught five passes for 65 yards. Garrett recorded 100 yards on kickoff returns, and one reception for 17 yards. Part of both of Allens touchdown runs were cutbacks, which, according to New York Daily News writer Larry Fox, burned an overpursuing Redskins defense.
[A]: Which player achieved more receptions, Branch or Brown?

[Q]: It's time to be water efficient! As populations increase across Australia and the rest of the world, demand for water will also increase. If we don't reduce each individual's demand for water (both directly and through embodied water) the water situation will become dire. It is obvious that we cannot increase demands for water much more without detrimental effects to the environment, society and the economy. It's all too easy to blame someone else for the water situation -"if 70% of water is used for agriculture then that's what we should target" - but it's not that easy. We all depend on the food and resources that agriculture provides, and while there are definitely opportunities to increase water efficiency on the farm, the solution will take more than that. We each share responsibility for the sustainable management of our water resources, which means using less water at home, in the workplace, at school, on holidays, on the farm, ... everyone, everywhere, every time. It's time to become water efficient! This involves reassessing our relationship with water, and learning to use it more sparingly. On the most basic level, it requires a behavioural change, and assigning a value to water that truly reflects its worth. We can also unlock economic benefits of being water efficient. There are many real world examples given in the case studies on this site. Everybody has a responsibility to save water, if future generations are to enjoy a similar standard of living to the one we enjoy now. In fact, many of the impacts associated with water use are likely to have an effect on our own lives! www.savewater.com.au has been designed to help you respond to the challenge to become water efficient. It acts as a central repository for relevant information and further advice, so that you can actually achieve significant savings. It also showcases those companies with products that will assist you in your goal.
[A]:
What is the main idea of this passage?