If `C_o C_1, C_2,.......,C_n` denote the binomial coefficients in the expansion of `(1 + x)^n`, then the value of `sum_(r=0)^n (

If `C_o C_1, C_2,.......,C_n` denote the binomial coefficients in the expansion of `(1 + x)^n`, then the value of `sum_(r=0)^n (r + 1) C_r` is
A. `(n2^(n))`
B. `(n +1)2^(n-1)`
C. `(n +2) 2^(n-1)`
D. `(n+2)2^(n -2)`

If `C_o C_1, C_2,.......,C_n` denote the binomial coefficients in the expansion of `(1 + x)^n`, then the value of `sum_(r=0)^n (r + 1) C_r` is

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