(3a-4b)3Â is equal to:_x005F_x000D_

• A. 9a^{2}-16b^{2}
• B. 27a^{3}-64b^{3}-108a^{2}b+144ab^{2}
• C. 27a^{3}-64b^{3}
• D. 9a^{2}-24ab+16b^{2}