Read a csv $($Command$-$Separated Values$)$ file containing arithmetic expressions and their corresponding

answers, generate questions and answer them, calculate and report the correct rate. Based on the correct

percentage, print the corresponding letter grade.

For example, consider the following CSV file. Each row contains items separated by commas, where

the first item represents an arithmetic expression, and the second item is the corresponding answer for

that expression.

$(3+2)\%2,1$

$3+2\%2,3$

$1+3\%2,2$

$1+4\%2,1$

$1+\frac{4}{2},3$

$\frac{1}{2}**3,0$

$\frac{1\mathrm{.}0}{2}**3,1\mathrm{.}5$

$\frac{1}{2}**3*0,0$

$\frac{1}{2\mathrm{.}0}**3,1\mathrm{.}5$

A sample run of the code is as follows.

$(1)$ what is $(3+2)\%2?1$

true

$(2)$ what is $3+2\%2?3$

true

$(3)$ what is $1+3\%2?2$

true

$(4)$ what is $1+4\%2?1$

true

$(5)$ what is $1+\frac{4}{2}?3$

true

$(6)$ what is $\frac{1}{2}**3?0$

true

$(7)$ what is $\frac{1\mathrm{.}0}{2}**3?1\mathrm{.}5$

true

$(8)$ what is $\frac{1}{2}**3\mathrm{.}0?0$

true

$(9)$ what is $\frac{1}{2\mathrm{.}0}**3?1\mathrm{.}5$

true

percentage correct: $100\%$

letter grade: A