The normal function of one tumor suppressor gene is to prevent cells with damaged chromosomes and DNA from "progressing from G1 to S," whereas another tumor suppressor gene prevents "passage from G2 to M." When tumor suppressor genes fail to work, cancer can result. A cell that is prevented from "passing from G2 to M" will .

A cell that is prevented from passing from G2 to M will Undergo apoptosis. The apoptotic machinery will be activated to clear off cells that are damaged and thus cannot proceed in the cell cycle

This prevents damaged cells from undergoing cell division and form mutated cells. These normal process is altered by cancerous cells

i think it's b or c hope this