The application of DeMorgan's theorem to the equation below produces what result?

$C+(BC{)}^{\text{'}}$

Select one:

a$.C^{\text{'}}+B^{\text{'}}{C}^{\text{'}}$

b$.C^{\text{'}}{B}^{\text{'}}+C^{\text{'}}$

c$.C^{\text{'}}BC$

d$.,C+B^{\text{'}}+C^{\text{'}}$