Tania is riding a train for $43.6$ miles to get to her destination. The train has $14.3$ more miles to travel before arriving at Tania's destination.

Which equation and solution correctly represent how many miles, $m$ , the train has already traveled?

A
$m\ +\ 14.3\ =\ 43.6$

$m\ =\ 29.3$

B
$m\ +\ 43.6\ =\ 14.3$

$m\ =\ 29.3$

C
$m\ +\ 14.3\ =\ 43.6$

$m\ =\ 57.9$

D
$43.6\ +\ 14.3\ =\ m$

$m\ =\ 57.9$