Part A
The author of “Solar Power for Public Buildings” concludes that converting all public buildings to solar power will boost California’s economy:
by listing jobs created by solar and explaining how workers with earnings to spend help businesses.
Part B
The evidence from the text that best supports the answer to Part A is:
“Workers will have to build solar panels. Truck drivers will have to deliver them. Some technicians will have to install them. Others will have to maintain them. All of these people will earn good wages. And as they spend those wages, they’ll support other businesses. That will create a positive economic ripple effect.”