Final answer:
The brick with nominal dimensions of 4 x 31/5 x 12 in. is a European Modular Brick, which aligns with the metric dimensions commonly used in European construction.
Step-by-step explanation:
The dimensions given for the brick correspond to Option 3: European Modular Brick. In brick terminology, "nominal dimensions" include the mortar joint size, which is typically taken into account in the sizing of bricks. The nominal dimensions provided are very close to the standard modular size for a European brick, which tends to follow the metric system. In this case, the 102 x 81 x 305mm size aligns with what is commonly used in European construction, hence the classification of a European Modular Brick. American Standard Bricks and Australian Standard Bricks typically use different size classifications and the dimensions provided do not align with the standard sizes for Norwegian bricks either.