Final answer:
The answer to the student's question is option 3: 'construction, with'. This selection best fills the blanks in the given sentence, accurately expressing the effort gone into creating an architectural structure with steel, reflective of the Industrial Revolution era.
Step-by-step explanation:
The correct answer to the student's question is 'Cora appreciated the labor that had gone into its construction, and light-colored stones in an alternating pattern. The sheer industry that had made such a project with steel ran south and north presumably, springing from some inconceivable source and shooting toward a miraculous terminus.'
Therefore, the blanks should be filled with 'construction' and 'with' respectively, as in option 3. This passage likely refers to the appreciation of the architectural and industrial efforts that have gone into building structures during the period of the industrial revolution. During this time, innovative construction methods using materials such as iron, steel, and sheet glass were developed, leading to significant changes in the landscape and architecture.