According to daniel roselle what are two ways islam improved the lives of people in spain

Daniel Roselle describes all the advantages that Spain was able to enjoy during its Muslim period. Islam improved the lives of the people in many different ways. These are two of the ways that Roselle highlights:

Education was improved during this period. Mosques offered free education to the poor, while many subjects of study such as astronomy, mathematics, philosophy and medicine flourished during this time period.Many public works were undertaken during this time period. Public lightning was installed in roads, Cordoba's roads were paved and libraries became more common.

Ithink the answer is b.)