All Cells in a Multicelled Organism Have the Same DNA

Multiple Choice

All cells in a multicelled organism have the same DNA. What does this mean?

A) Every cell produces the same range of proteins.
B) Each cell ultimately produces the same range of proteins but in a different order as the cell ages.
C) RNA polymerase affected by activator or inhibitor sequences is one way in which genes in most cells can be selectively turned on or off.
D) External chemical inputs must be used to determine which genes are expressed in which cells.