C-03-Q073mediumsingle_mcqa3+1=?a^3 + 1 = ?a3+1=?a(a+1)(a2−a+1)(a+1)(a^2-a+1)(a+1)(a2−a+1)b(a−1)(a2+a+1)(a-1)(a^2+a+1)(a−1)(a2+a+1)c(a+1)3(a+1)^3(a+1)3d(a+1)(a2+1)(a+1)(a^2+1)(a+1)(a2+1)