Question

The following text is adapted from an article about seismic exploration. Geologists struggled for years to map underground oil reserves accurately using only surface-level data, which offered an incomplete picture of complex subsurface structures. To address this, scientists developed advanced 3D seismic imaging technology, deploying arrays of sensors and powerful computing to process the vast data, allowing for detailed mapping of geological formations.
Which choice best describes the function of the underlined sentence ("To address this, scientists developed advanced 3D seismic imaging technology, deploying arrays of sensors and powerful computing to process the vast data, allowing for detailed mapping of geological formations.") in the text as a whole?
A. It explains how scientists overcame a challenge in mapping oil reserves.
B. It argues that 3D imaging is less expensive than traditional geological surveys.
C. It describes how geologists first discovered the existence of oil reserves.
D. It contrasts two competing theories about oil formation.

Answer 1

A. It explains how scientists overcame a challenge in mapping oil reserves.

The sentence describes the solution—development and use of 3D seismic imaging and related tools—to address the earlier-stated problem of incomplete surface-level data.