If abond's volatility is $6\mathrm{.}80$ percent and the interest rate goes down by $0\mathrm{.}75$ percent $($points$),$ then the price of the bond:

Multiple Choice

decreases by $5\mathrm{.}10$ percent.

decreases by $6\mathrm{.}8$ percent

increases by $5\mathrm{.}10$ percent.

increases by $0\mathrm{.}75$ percent.