Final answer:
Density is an intrinsic property and does not change when the size of the material changes. Hence, even after the block is cut in half, its density remains the same at 14.0 g/ml.
Step-by-step explanation:
The question revolves around the concept of density, which is a measure of mass per unit volume and is expressed in units such as g/ml or g/cm³. The original density of the block was measured to be 14.0 g/ml. Density is an intrinsic property of a material, meaning it does not change regardless of the size or shape of the sample of the material. Therefore, when Jen cuts the block in half and measures the density again, it will remain the same, since both mass and volume are reduced by the same factor, leaving the ratio of mass to volume unchanged.
The correct answer to this question is: B) 14.0 g/ml.