If adict $=\{\text{'}$r$\text{'}$: 'red', $\text{'}$g$\text{'}$: 'green', $\text{'}$b$\text{'}$: 'blue'$\},$ what will happen when the following statement executes:

adict$[\text{'}$b$\text{'}]=$ 'Blue'

An error will occur, since the key $\text{'}$b$\text{'}$ is already in the dictionary.

The value for key $\text{'}$b$\text{'}$ will be updated to 'Blue'

The value for key $\text{'}$b$\text{'}$ will remain as 'blue', since these are already in the dictionary.