The new artisanal greenhouse would require 700 empty wine bottles be embedded in a frame made of clay and straw

The builder, a man with too much time on his hands, had determined that each time a bottle was added to the structure it would take 30 minutes of labor at $7.50 per hour in the blazing sun. An activity-based costing of the entire artisanal greenhouse revealed that the total labor cost would be:
A) $2,525.
B) $2,850.
C) $2,625.
D) $2,450.

C