A group of mutations, known as MT-ND1 , have been identified in mitochondrial DNA . These mutations are associated with a number of debilitating diseases stemming from the production of nonfunctional proteins in the mitochondria. Which of the following cellular deficiencies would most likely be related to these MT-ND1 mutations?

A. The cell is unable to synthesize most proteins required for normal cell functions.
B. The cell is unable to break down toxic materials and would accumulate large volumes of these materials.
C. The cell is able to synthesize proteins, but the proteins would not fold properly and would not contain the correct molecular tags for export from the cell
D. The cell is unable to complete reactions related to electron transport and ATP production