The assets $($in billions of dollars$)$ for a financial firm can be approximated by the function $A(x)=343e^{\mathrm{.}061x},$ where $x=7$ corresponds to the year $2007.$ Find the assets in each of the following years.

$($a$)2013$

$($b$)2016$

$($c$)2017$

$($a$)$ Which of the following describes how to find the assets in $2013$ using the given information? Select the correct choice below and fill in the answer box to complete your choice. $($Type an integer or a decimal.$)$

A$.$ To find the assets in $2013,$ find the intersection point of the graphs $y=343e^{\mathrm{.}061x}$ and $y=.$ The assets in $2013$ are represented by the $y-$coordinate.

B$.$ To find the assets in $2013,$ substitute for $x$ and evaluate to find $A(x).$

In $2013$ the assets are about $ billion.

$($Type an integer or decimal rounded to the nearest tenth as needed.$)$

$($b$)$ Which of the following describes how to find the assets in $2016$ using the given information? Select the correct choice below and fill in the answer box to complete your choice. $($Type an integer or a decimal.$)$

A$.$ To find the assets in $2016,$ substitute for $x$ and evaluate to find $A(x).$

B$.$ To find the assets in $2016,$ find the intersection point of the graphs $y=343e^{\mathrm{.}061x}$ and $y=,$ The assets in $2016$ are represented by the $y-$coordinate.

In $2016$ the assets are about $ billion.

$($Type an integer or decimal rounded to the nearest tenth as needed.$)$

$($c$)$ Which of the following describes how to find the assets in $2017$ using the given information? Select the correct choice below and fill in the answer box to complete your choice. $($Type an integer or a decimal.$).$

A$.$ To find the assets in $2017,$ find the intersection point of the graphs $y=343e^{\mathrm{.}061x}$ and $y=,$ The assets in $2017$ are represented by the $y-$coordinate.

B$.$ To find the assets in $2017,$ substitute for $x$ and evaluate to find $A(x).$

In $2017$ the assets are about $$$ billion.

$($Type an integer or decimal rounded to the nearest tenth as needed.$)$