If the block size is ‚Äö√Ñ√∂‚à ö√ë‚à ö‚â§s‚Äö√Ñ√∂‚à ö√ë‚à ö¬•, how many affine transformations are possible ?$

• A. 2^s (2^s-1)(2^s-1)(2^s-1²)………(2^s-1^(s-1))
• B. 2^s (2^s-1)(2^s-2)(2^s-2²)………(2^s-2^(s-2))
• C. 2^ss (2^s-1)(2^s-2)(2^s-2²)………(2^s-2^(s-1))
• D. 2^s (2^s-1)(2^s-2)(2^s-2²)………(2^s-2^(s-3))