This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

[Q]: Passage: They can also be armed with non-lethal (more accurately known as "less than lethal" or "less-lethal") weaponry, particularly for riot control. Non-lethal weapons include batons, tear gas, riot control agents, rubber bullets, riot shields, water cannons and electroshock weapons. Police officers often carry handcuffs to restrain suspects. The use of firearms or deadly force is typically a last resort only to be used when necessary to save human life, although some jurisdictions (such as Brazil) allow its use against fleeing felons and escaped convicts. A "shoot-to-kill" policy was recently introduced in South Africa, which allows police to use deadly force against any person who poses a significant threat to them or civilians. With the country having one of the highest rates of violent crime, president Jacob Zuma states that South Africa needs to handle crime differently from other countries. Question: What is South Africa's "shoot-to-kill" policy?
[A]: allows police to use deadly force against any person who poses a significant threat to them or civilians

[Q]: Passage: The Bell Telephone Company was created in 1877, and by 1886, more than 150,000 people in the U.S. owned telephones. Bell Company engineers made numerous other improvements to the telephone, which emerged as one of the most successful products ever. In 1879, the Bell company acquired Edison's patents for the carbon microphone from Western Union. This made the telephone practical for longer distances, and it was no longer necessary to shout to be heard at the receiving telephone. Question: What addition let people stop yelling into the telephone?
[A]: carbon microphone

[Q]: Passage: By the end of 1957, Nasser nationalized all remaining British and French assets in Egypt, including the tobacco, cement, pharmaceutical, and phosphate industries. When efforts to offer tax incentives and attract outside investments yielded no tangible results, he nationalized more companies and made them a part of his economic development organization. He stopped short of total government control: two-thirds of the economy was still in private hands. This effort achieved a measure of success, with increased agricultural production and investment in industrialization. Nasser initiated the Helwan steelworks, which subsequently became Egypt's largest enterprise, providing the country with product and tens of thousands of jobs. Nasser also decided to cooperate with the Soviet Union in the construction of the Aswan Dam to replace the withdrawal of US funds. Question: What entity did Nasser spearhead that was a boon for Egypt's economy?
[A]:
Helwan steelworks