The correct answer is: B. Double
Intermediate Block homes are provided only on Double Lines. This is because Double Lines have the capacity to accommodate more homes than Single Lines. Additionally, Double Lines are typically located in more central areas, which makes them more desirable for residents.
Single Lines, on the other hand, are typically located in more peripheral areas. They also have a lower capacity than Double Lines, which means that they can only accommodate a limited number of homes. As a result, Intermediate Block homes are not typically provided on Single Lines.
Triple Lines are the most spacious type of line, and they can accommodate the most homes. However, they are also the most expensive to build and maintain. As a result, they are not typically used for Intermediate Block homes.
In conclusion, the correct answer is: B. Double. Intermediate Block homes are provided only on Double Lines. This is because Double Lines have the capacity to accommodate more homes than Single Lines, and they are typically located in more central areas.