Problem: The incorporated city fit into 4-5 square miles  as late as the First World War, but has since greatly expanded, crossing the Ashley River and encompassing James Island and some of Johns Island. The city limits also have expanded across the Cooper River, encompassing Daniel Island and the Cainhoy area. The present city has a total area of 127.5 square miles , of which 109.0 square miles  is land and 18.5 square miles  is covered by water. North Charleston blocks any expansion up the peninsula, and Mount Pleasant occupies the land directly east of the Cooper River. Charleston Harbor runs about 7 miles  southeast to the Atlantic with an average width of about 2 miles , surrounded on all sides except its entrance. Sullivan's Island lies to the north of the entrance and Morris Island to the south. The entrance itself is about 1 mile  wide; it was originally only 18 feet  deep, but began to be enlarged in the 1870s. The tidal rivers  are evidence of a submergent or drowned coastline. There is a submerged river delta off the mouth of the harbor and the Cooper River is deep.
Answer this question based on the article: How many islands did the city expand to completely encompass?
A: 2

Problem: In 2000, there were 149,957 households out of which 18.30% had children under the age of 18 living with them, 52.70% were Marriage living together, 7.70% had a female householder with no husband present, and 37.00% were non-families. 30.40% of all households were made up of individuals and 16.90% had someone living alone who was 65 years of age or older.  The average household size was 2.13 and the average family size was 2.61.
Answer this question based on the article: Which was larger, the average household size or the average family size?
A: average family size

Problem: As of the 2010 United States Census, there were 42,040 people, 16,210 households, and 11,364 families residing in the county. The population density was . There were 18,133 housing units at an average density of . The racial makeup of the county was 94.7% white, 2.2% black or African American, 0.5% Asian, 0.2% American Indian, 0.5% from other races, and 1.9% from two or more races. Those of Hispanic or Latino origin made up 1.3% of the population. In terms of ancestry, 26.4% were Germans, 15.4% were Irish people, 12.0% were Americans, and 11.9% were English people.
Answer this question based on the article: Which two racial groups made up the same amount of the population?
A:
Asian