please confirm my answers.

Which type of mortgage would enable the purchaser to benefit from a drop in mortgage interest rates? Variable-rate B Open Fixed-rate D Closed If you are seeking interest income and the potential for capital gains, which fund would you choose? Bond index fund B High-yield bond fund C Dividend fund Money market fund Given the following, calculate the Net Asset Value per Share: Total Assets $480,000,000 Total Liabilities $30,000,000 Total # of shares 55,500,000 $8.05 $8.11 $7.92 (D) $7.66 Which correlation of returns contributes the least to risk diversification in a stock portfolio? +1 -1 -0.5 D +0.5