The main focus shifts from an explanation of the Higgs field to a discussion of the answer to Higgs theory. The correct option is C.
The view of the passage is shown in the attached images.
The first two paragraphs of the passage describe how "Peter Higgs and a handful of other physicists have tried to understand the origin of a basic physical feature: mass," and the third paragraph discusses the advanced idea ("now called the field Higgs') to explain the environment in which mathematical equations are most useful for understanding mass. However, the passage shifts the focus: the fourth and fifth paragraphs describe how the Higgs field idea was initially not well received in the scientific community, and the last paragraph illustrates that in modern times the idea has eventually become a fact accepted by most scientists. So as the passage progresses, it can be seen that the main focus of the passage shifts from an explanation of what the Higgs field is to an explanation of how his theory about it was received.
Option A is wrong because the passage does not change from a more technical to a less technical way of describing it, and the entire passage is actually intended for readers without special knowledge of physics.
Option B is wrong because the passage never provides a contextualization of Higgs' work in other lines of physics research contemporary to Higgs.
Option D is false because the passage offers no speculation about future discoveries that might come from confirming the existence of the Higgs field.
Therefore, the emphasis in the given passage shifts from an explanation of the Higgs field to a discussion of the answer to the Higgs theory.
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