Which of the following statements prints the last field in each row of the csv file?

a$.$ with open$(\text{'}$my file.csv$\text{'},\text{'}r\text{'})$ as $f$ :

$Cs{v}_d$ata $=csv.$reader$(f)$

for $rincs{v}_d$ata:

print $(r[-1])$

b$.$ with open$(\text{'}$my file.csv$\text{'},\text{'}$r$\text{'})$ as $f$ :

$cs{v}_d$ata $=csv.$reader $(f)$

print $($csv$\_$data $[-1])$

c$.$ with open$(\text{'}$my$\_$file.csv$\text{'},\text{'}$r$\text{'})$ as $f$ :

csv$\_$data $=csv*$ reader $($f $-1)$

print $($csv$\_$data$)$

d$.$ with open$(\text{'}$my file.csv$\text{'},\text{'}$r$\text{'})$ as $f$ :

$CS{v}_d$ata $=csv.$reader $(f)$

for $r$ in CSv data:

print $($r $\frac{?}{\text{b}\text{a}\text{r}}(0)$:$-1)$