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

Q: The Spiritual Exercises of Ignatius of Loyola (Latin original: Exercitia spiritualia) (composed 1522--1524) are a set of Christian meditations, prayers and mental exercises, written by Saint Ignatius of Loyola, a 16th-century Spanish priest, theologian, and founder of the Society of Jesus (Jesuits).

A: What group was Spiritual Exercises of Ignatius of Loyola a member of?
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Q: Modeled after US hot website.com, group buying websites are now popular in China. These websites use the power of group buying to get competitive discounts for a daily deal on some best stuff to do, see, eat and buy in the cities across China. Discounts are available within just one click. Zhao lei, a software engineer in Beijing, loves the one-hour lunch break at noon,as it is the best time for him to check "today's special" at his favorite group buying websites . Sometimes he searches for great deals at directory sites devoted to the new shopping space. Zhao spends around 800 yuan($117.65) on group buying every month, mostly to buy food coupons for eating at some nice restaurants and occasionally to find something fun to do. " I love group buying. In addition to the competitive discounts it offers, it helps me get something fun, exciting and new, and such surprises give me a reason to try something new," he said. When he finds a really good bargain, he will send the link to friends or colleagues through MSN,QQ, or e-mail, or share the information at some social networking websites. In doing so, he often gets a certain cut off the price. At some sites, buyers are invited to leave notes about what they want to buy and the website will consider it if similar applications reach a certain number. That is how Zuo got her digital camera after waiting for two months. "It is cool. I want to buy a new digitgal camera for my trip to Switzerland this winter, but I never expected such cheap prices!" Zuo said.

A: What is the passage mainly about?
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Q: There are 27,908 households, of which 31.5% have children under the age of 18 living with them, 48.9% were married couples living together, 15.4% had a female householder with no husband present, and 32.3% were non-families. 28.4% of all households are made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.39, and the average family size was 2.94. 70% of women with school-age children work.

A:
which household was fourth most common?
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