The correct option is A Inner mitochondrial membrane
The cell organelle that protects the genetic material of an organism is called the nucleus. It is considered to be the brain of the cell as it controls the whole cell and its functions. On the basis of the number of nuclei available in the cell, a cell can be termed as monokaryotic/uninucleate- one nucleus in a cell, dikaryotic/binucleate- 2 nuclei in a cell, multinucleate/coenocytic/syncytium-multiple nuclei in a cell. This condition is mostly found in skeletal muscle fibres. The nucleus includes the nuclear envelope, nuclear lamina, nucleoplasm, nucleolus and chromosomes. The nuclear envelope is a double membraned structure. It contains the outer membrane and the inner membrane. The outer membrane is associated with ribosomes and continuous with the endoplasmic reticulum. The 2 membranes are separated by a fluid filled space called perinuclear space. The membranes are not continuous- they have pores (small gaps in the nuclear membrane which helps in the communication with the cytoplasm).
Mitochondria are sausage or cylindrical shaped. They are referred to as the power house of the cell because they are the sites of ATP production. Every cell has a different number of mitochondria depending upon the energy requirement. Hard working active cells have more mitochondria. They are double membrane bound organelles. The outer membrane is continuous and smooth. It contains transport proteins and is selectively permeable. The inner membrane is less selectively permeable and is folded to form cristae which increase the surface area. It contains the ATP synthase or oxysomes which help in the synthesis of ATP.