Correct Response: B. As the largest body of water in the state, the Quabbin Reservoir is a major physical feature of Massachusetts and a source of water for Boston and 40 other communities in the Greater Boston area. Lake Quinsigamond (A) is a natural body of water situated between Worcester and Shrewsbury in central Massachusetts. It is used primarily for recreational purposes and is not a water supply for Greater Boston. Knightville Reservoir (C) was formed as a flood control measure by the damming of the East Branch of the Westfield River in Huntington, MA. Lake Cochituate (D) in Middlesex County did supply the city of Boston with water for many years, but it was not formed specifically for that purpose, nor is it a major physical feature of the state.
