When determining the lethal effects of ultraviolet radiation on bacteria, you exposed Bacillus subtilis and Escherichia coli to ultraviolet radiation

When determining the lethal effects of ultraviolet radiation on bacteria, you exposed Bacillus subtilis and Escherichia coli to ultraviolet radiation. You know that  UV exposure causes mutations in the DNA causing pyrimidine dimers. Which of the given bacterial species will be more resistant? Explain why in terms of its characteristics and how those would contribute to resistance.