In which situation would new technology be most likely to cause a change in an existing theory about new structures in a cell
the new technology makes it possible to detect and analyze a structure more rapidly
the new technology allows scientists to confirm the presence of an existing structure in a cell
the new technology makes it possible to produce additional structures that were not previously there,
the new technology allows detection of a structure that could not be detected previously

D. The new technology allows the detection of a structure that could not be detected previously.

Explanation:

The theory is developed based on real things. But theory can be changed. No theory exists forever. Now, if a theory is developed in biology from exiting components of the cell, then if any new elements discovered in the cell, later the previous theory can be changed at any time. So, if any new technology arrives, which can detect the structure of a cell which wasn't found before, that causes change or modification of an existing theory.

it is called the mitotic spindle