What does the following line of code do$?$

$<$a data$-$role$5$"button" onclick$5$"addValueToPassword$(\text{'}$bksp$\text{'})"$ data$-$icon"delete"$>$del$</$a$>$

a$.$ The JavaScript function deletes the last character that was entered.

b$.$ The JavaScript function deletes an appropriate digit from the password field.

c$.$ The data$-$icon attribute for this button is set to "delete", so it appears with a hollow dot.

d$.$ It calls the JavaScript function addValueToPassword to add the digit $0$ from the password field.