Neurons incapable of cell division because they lack:A Mitochondria  B Endoplasmic Reticulum C Centrioles  D Ribosomes

The answer is C. Centrioles.

Neurons are incapable of cell division because they lack centrioles. Centrioles are key components in the process of cell division, specifically in the formation of the mitotic spindle, which is necessary for separating chromosomes during cell division. Without centrioles, neurons cannot undergo mitosis and therefore cannot divide.

Mitochondria, endoplasmic reticulum, and ribosomes are all important organelles within a neuron, but they are not directly involved in cell division. Mitochondria are involved in energy production, endoplasmic reticulum is involved in protein and lipid synthesis, and ribosomes are involved in protein synthesis.