The main arena of various types of activities of a cell is
Cytoplasm
The correct option is D
Explanation of the correct option:
Explanation of the incorrect option:
Option A:
Option B:
The creation of ATP, intracellular Ca2+ signaling, and the production of reactive oxygen species are only a few of the many cellular functions that depend on mitochondria.
Option C:
The nucleus carries the genes, and structures that hold the genetic information, and controls and regulates the functions of the cell (such as growth and metabolism).
Final answer:
The main arena of various types of activities of a cell is the cytoplasm.