$(4 x+3)^{4}$ A) $\left(16 x^{2}+12 x+9\right)^{4}$ B) $768 x^{4}+2304 x^{3}+864 x^{2}+1296 x+81$

Multiple Choice

$(4 x+3) ^{4}$

A) $\left(16 x^{2}+12 x+9\right) ^{4}$
B) $768 x^{4}+2304 x^{3}+864 x^{2}+1296 x+81$
C) $256 x^{4}+768 x^{3}+864 x^{2}+432 x+81$
D) $256 x^{3}+768 x^{2}+864 x+432$