corporate finance里面一道题，求解释 raised, equity, company, finance, corporate

jjforever001

Wang Securities had a long-term stable debt-to-equity ratio of 0.65. Recent bank borrowing for expansion into South America raised the ratio to 0.75. The increased leverage has what effect on the asset beta and equity beta of the company?
A.The asset beta and the equity beta will both rise.
B.The asset beta will remain the same and the equity beta will rise.
C. The asset beta will remain the same and the equity beta will decline.


(Institute 40)
Institute, CFA. 2015 CFA Level I Volume 4 Corporate Finance and Portfolio Management. Wiley Global Finance, 2014-07-14. VitalBook file.
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答案是B is correct. Asset risk does not change with a higher debt-to-equity ratio. Equity risk rises with higher debt.

为什么啊？不清楚过程是什么

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