The chemical potential of component \(i\) in a solution mixture can be expressed as

(a) \(\mu_{i}=R T \ln G_{i}^{0}+a_{i}\)

(c) \(\mu_{i}=R T \ln G_{i}^{0}-a_{i}\)

(b) \(\mu_{i}=R T \ln a_{i}+G_{i}^{0}\)

(d) \(\mu_{i}+R T \ln G_{i}^{0}=a_{i}\).