Read the following expression regarding mutual information I(X;Y). Which of the following expressions is/are correct:(a) I(X;Y) = H(X) – H(Y/X)(b) I(X;Y) = H(X) – H(X/Y)(c) I(X;Y) = H(X) + H(Y) – H(X,Y)(d) I(X;Y) = H(X) + H(Y) + H(X,Y)

• A. (a) and (c)
• B. (b) and (c)
• C. (c) and (d)
• D. (a) and (d)