Choose the correct Python statement that represents the following mathematical expression. You may assume all variables already exist.

$\sqrt[1]{?}=\frac{-b+\sqrt[\phantom{2}]{b^2-4ac}}{2a}$

root$1=-b+$ math.sqrt$($bb $\frac{\text{:}-4^{**}{a}^{**}c}{2^{**}a}$

math.sqrt$($b$*$b $($:$-4^{**}{a}^{**}c\}$

none of these answers are correct