Charles Schwab $-$ A US based investment advisor decides to take exposure to the Indian stock market. Current exchange rate is $81$ INR$/$$ and it plans to invest $10$ Mn $ in the Indian stock markets. The end of the year exchange rate turns out to be $78$ INR$/$$ and Indian markets produced $9\%$ returns during the year. Which of the following is true?

Group of answer choices

Charles Schwab$$s dollar returns are greater than $9\%$ as INR appreciated during the year and this added to the returns earned by the Charles Schwab.

Charles Schwab earned $13\mathrm{.}19\%$ return in dollar terms on its investments.

Charles Schwab would be correct if it reports to its investors that $13\mathrm{.}19\%$ return purely reflects excellent stock$-$market investing abilities of Charles Schwab$$s managers.$$

Both a and b$.$

All of a$,$ b$,$ and c$.$