Cho

Câu hỏi: Cho ${\left(2x+1\right)}^n=a_0+a_{1}x+a_2{x}^2+...+a_n{x}^n$ thỏa mãn $a_0+\frac{a_1}{2}+\frac{a_2}{2^2}+...+\frac{a_n}{2^n}=4096$ Tìm $a_5$

A. $2^5{C}_{10}^5$

B. $2^7{C}_{12}^5$

C. $2^5{C}_{12}^5$

D. $2^7{C}_{10}^5$