Biology

The correct answer is: C.Centrosomes

During the G2 phase, the centrosomes (which are key structures involved in organizing the microtubules of the spindle apparatus during mitosis) are duplicated to ensure proper cell division. The centrosomes are critical for the formation of the spindle fibers that help separate the chromosomes during mitosis.

Explanation of other options:

A.Golgi apparatus: The Golgi apparatus does not get duplicated during the G2 phase. However, it does undergo reorganization in preparation for mitosis.