This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

[EX Q]: Between 2000 and 2004 an average of 478 crimes were reported each day in Mexico City; however, the actual crime rate is thought to be much higher "since most people are reluctant to report crime". Under policies enacted by Mayor Marcelo Ebrard between 2009 and 2011, Mexico City underwent a major security upgrade with violent and petty crime rates both falling significantly despite the rise in violent crime in other parts of the country. Some of the policies enacted included the installation of 11,000 security cameras around the city and a very large expansion of the police force. Mexico City has one of the world's highest police officer-to-resident ratios, with one uniformed officer per 100 citizens.
[EX A]: How many crimes occurred around the turn of the latest century? 

[EX Q]: The period between 1815 and 1871 saw a large number of revolutionary attempts and independence wars. Balkan nations began to regain independence from the Ottoman Empire. Italy unified into a nation state. The capture of Rome in 1870 ended the Papal temporal power. Rivalry in a scramble for empires spread in what is known as The Age of Empire.
[EX A]: When were there many struggles for independence or overthrowing prevailing governments?

[EX Q]: In the later Vedic Age, a number of small kingdoms or city states had covered the subcontinent, many mentioned in Vedic, early Buddhist and Jaina literature as far back as 500 BCE. sixteen monarchies and "republics" known as the Mahajanapadas—Kashi, Kosala, Anga, Magadha, Vajji (or Vriji), Malla, Chedi, Vatsa (or Vamsa), Kuru, Panchala, Matsya (or Machcha), Shurasena, Assaka, Avanti, Gandhara, and Kamboja—stretched across the Indo-Gangetic Plain from modern-day Afghanistan to Bengal and Maharashtra. This period saw the second major rise of urbanism in India after the Indus Valley Civilisation.
[EX A]:
By what age had many small states covered the subcontinent?