The New Pipe and Cable Fence Would Require 70 Posts

Multiple Choice

The new pipe and cable fence would require 70 posts be planted in the rock-hard clay along the property line.It was known that each time a post is planted it would take 3 man hours of labor at $12 per hour in the blazing sun.An activity-based costing of the entire pier system results in a total cost of how much?

A) $2,520
B) $7,500
C) $3,000
D) $840