Suppose you are asked to develop a frontend program for a database system that backs an ecommerce website.

You need to write an $`$add$\_$product$`$ function, which allow people to add a new batch of products into the database.

The information people should provide at the point of call includes the product name, the quantity, the time when this batch is added $($defaults to $`$time$.$ctime$()`),$ and, optionally, any other specifics about the batch to add.

Which of the following function signatures is the most appropriate for this desired function $($note: $`$time$.$ctime$()`$ is a function that can return the current data and time$)$:

$-[]`$add$\_$product$($name$,$ quantity, time$=$time.ctime$(),*$args$)`$

$-[]`$add$\_$product$($name$=$None, quantity, time$=$time.ctime$(),**$kwargs$)`$

$-[]`$add$\_$product$($name$=$None, quantity$=$None, time$=$None, $*$args$)`$

$-[]`$add$\_$product$($name$,$ quantity, time$=$time.ctime$(),**$kwargs$)`$