$3.$ If the dollar interest rate is $10$ percent, the euro interest rate is $12$percent, thenA$)$ an investor should invest only in dollars if the expected dollarappreciation against the euro is $4$ percent.B$)$ an investor should invest only in euros. An investor should invest onlyin dollars if the expected dollar appreciation against the euro is $4$ percent.C$)$ an investor should be indifferent between dollars and euros. An investorshould invest only in dollars if the expected dollar appreciation against theeuro is $4$ percent.D$)$ an investor should invest only in dollars.E$)$ an investor should invest only in euros.