Which of the following expressions calculates the arc length of the curve $y=2e^x$ from $x=0$ to $x=\ln 3$?

${\int }_0^{\ln 3}\sqrt{1+4e^{2x}}dx$

${\int }_0^{\ln 6}\sqrt{1+(2e^x{)}^3}dx$

${\int }_0^{\ln 6}\sqrt{1+4e^{2x}}dx$

${\int }_0^{\ln 3}\sqrt{1+4e^x}dx$