What is the relation between modulus of rigidity (G), bulk modulus (K) and Poisson's ratio (µ)?

• A. G=K(1-2µ)/2(1+µ)
• B. G=3K(1-2µ)/2(1+µ)
• C. G=3K(1-2µ)/(1+µ)
• D. G=3K(1-µ)/2(1+µ)