A customer enters a Good$-$'Til$-$Cancelled $($GTC$)$ order to purchase $500$

shares and indicates that it's good for one week. During the week, if $300$

shares are purchased, what happens at the end of the week?

A

The order is extended for an additional week.

The order is cancelled without executing the additional $200$ shares.

The order is cancelled and the execution for the $300$ shares is reversed.

The order is extended until the additional $200$ shares can be purchased.