please explain briefly. Thank you!

2. You took a short position of $200 in an index ETF with a beta of 1 . Using the money from shorting the ETF and your own $800, you invested in stock ABC with a beta of 2.3 . The beta of the resulting portfolio is A. 1.217 B. 2.04 C. 2.083 D. 2.30 E. 2.625 3. If the firm's new project has been operating at its cash break-even level of output and is now expected to continue at that level over its lifetime. Given this, we know that the project: A) will have annual positive net income that equals to depreciation B) is operating at a higher level than if it were operating at its accounting break-even level. C) is operating at a lower level than if it were operating at its financial break-even level. D) is lowering the total cash flow of the firm. E) has a zero net present value