PLEASE HELP! I'M GIVING 100 POINTS!

The depth of the deepest part of a body of water is 25,344 inches. Express this depth in scientific notation using an appropriate unit from the given list. What is the most appropriate unit for expressing the​ depth? What is the​ depth?
1 centimeter
10 millimeters
1 meter
100 centimeters
1 inch
2.54 centimeters
Select the correct choice below. If​ necessary, fill in the answer box to complete your choice.
​(Use scientific notation. Use the multiplication symbol in the math palette as​ needed.)
A.
The most appropriate unit is the meter. The depth is
nothing meters.
B.
The most appropriate unit is the millimeter. The depth is
nothing millimeters.
C.
The most appropriate unit is the centimeter. The depth is
nothing centimeters.
D.
The most appropriate unit is the inch. The depth in inches is given.