Two possible routes for a power line are under study. Data on the routes are as shown in the following table:

Option Information	Around the Lake	Under the Lake
Length	15 km	5 km
First Cost	$5000 / km	$25,000 /km
Maintenance cost	$200/km/yr	$400/km/yr
Useful Life (years)	15	20
Salvage Value	$3000/km	$5000/km
Yearly power loss	$500/km	$500/km
Annual Taxes	2% of the first cost	2% of the first cost

If MARR = 10%, which alternative should you select? Justify your answer. (7 points)