Write an Equivalent Double Integral with the Order of Integration $\int _ { 1 } ^ { 2 } \int _ { 0 } ^ { \ln x } 6 x d y d x$

Multiple Choice

Write an equivalent double integral with the order of integration reversed.
- $\int _ { 1 } ^ { 2 } \int _ { 0 } ^ { \ln x } 6 x d y d x$

A) $\int _ { 0 } ^ { \ln 2 } \int _ { \mathrm { e } } ^ { 2 } 6 \mathrm { xdx } d \mathrm { y }$
B) $\int _ { 0 } ^ { \ln 2 } \int _ { 1 } ^ { 2 } 12 x d x d y$
C) $\int _ { 0 } ^ { \ln 2 } \int _ { e ^ { y } } ^ { 2 } 12 x d x d y$
D) $\int _ { 0 } ^ { \ln 2 } \int _ { 1 } ^ { 2 } 6 x d x d y$