Final answer:
The statement is true; placing infill walls between columns increases the stiffness of the structure and can attract greater seismic forces during an earthquake.
Step-by-step explanation:
The statement that placing infill walls between columns stiffens the columns thereby attracting greater seismic forces is true. Infill walls increase the stiffness of a building's frame because they provide additional bracing and support to the columns. When a building with infill walls experiences an earthquake, the enhanced stiffness from the walls can actually attract more seismic forces, which in turn increases the demand on the structural elements of the building. This phenomenon is related to the dynamic characteristics of the structure, such as its natural frequency, and how it interacts with the seismic energy. Earthquake engineering practices often consider the effects of infill walls in the seismic design of buildings to ensure they can withstand these greater forces without catastrophic damage.