Investors from Germany, the United States, and the United Kingdom frequently invest in each other$$s currencies based on prevailing interest rates. If British interest rates increase, German investors are likely to buy $\_\_\_\_$ dollar$-$denominated securities$,$ and the euro is likely to $\_\_\_\_$ relative to the dollar.

a$.$ fewer; depreciate

b$.$ fewer; appreciate

c$.$ more; depreciate

d$.$ more; appreciate