题目如下：
Duvall and his advisers have decided to use an income approach to value Able Manufacturing. Duvall and his advisers agreed on the following estimates:
- Risk free rate: Estimated at 4.8 percent.
- Equity risk premium: The parties agreed that a 5 percent equity risk premium was appropriate.
- Beta: A beta of 1.1 was estimated based on publicly traded companies in the same industry.
- Small stock premium: The smaller size and less diversified operations suggest greater risk for Able relative to public companies. A small stock premium of 3 percent was included in the equity return calculation for these expected risks.22
- Company-specific risk premium: Assessment of Able indicated that beyond Smith’s key role at the company, no other unusual elements created additional risk. A 1 percent company-specific risk adjustment was included.
- Industry risk premium (build-up method only): The industry risk premium was 0 percent because no industry related factors were viewed as materially affecting the overall required return on equity estimate.
Based only on the information given, Calculate the required return on equity for Able using the build-up method.
解答里说这道题不需要用beta，也就是说题目里的beta是CAPM的beta。请问这是从题目哪一点看出来的？
