Answer:
Option D When activated, Bax and Bak form oligomers in the outer membrane of mitochondria, leading to the release of cytochrome c.
Explanation:
The proapoptotic genes are involved in the process of apoptosis. The antiapoptotic gene prevents apoptosis that is cell death. The proapoptotic genes are bax, bak, bad and bid. The bcl family genes are antiapoptotic genes. The process involved activation of apoptosis inside the cell is called intrinsic pathway of apoptosis.
The activation proapoptotic genes, Bax and Bak form oligomers in the mitochondria outer membrane. These pores in the mitochondrial membrane allows the release of cytochrome-c that further attaches with Apaf-1. This leads to activation of caspase 9 that further activates caspase 3, thus inducing apoptosis.
 
        
             
        
        
        
The solution of nutrients and organelles is called CYTOPLASM.
The cytoplasm of a cell is made up of all the organelles that are located outside of the nucleus which are enclosed within the cell membrane of a cell. The cytoplasm is a colorless, clear, jelly like substance whose constituent is majorly water [80%]. It also contains enzymes, salts, organelles and various organic molecules. 
        
             
        
        
        
Through a cut or an injury where any skin has been broken.
An infection through an animal's bite or sting.(Like the West Nile Virus which spreads though mosquito bite, or Rabies though an infected mammal's bite).
Can be inhaled or consumed and go from the lungs into the other organs causing harm internally.