Optional

The hotel provides optional amenities such as a spa and fitness center.

She has optional classes to attend on Saturdays.

The airline offers optional upgrades to first class.

The dress code for the event is optional, so wear whatever you feel comfortable in.

The driver has optional routes to take to avoid traffic.

The customer has the optional toppings for his pizza.

The software allows for optional customization of the user interface.

The optional training sessions help new employees to become familiar with the company culture.

The car rental company provides optional GPS navigation systems for an additional cost.

The extra credit assignment is optional, but it can help improve your grade.

The hotel offers optional airport transfer services for an additional fee.

Attending the meeting is optional, but it is encouraged.

The dessert is optional on the menu, but it is highly recommended.

Using a citation style is optional for this paper, but it can help support your arguments.

The extra credit assignment is optional and can earn you bonus points towards your final grade.

Attending the after-party is optional, but it is a chance to network with other professionals.

Purchasing the extended warranty is optional, but it can provide additional coverage.

The daily yoga session is optional, but it can help you relieve stress.

Donating to the charity is optional, but it is appreciated.

Upgrading your seat on the plane is optional, but it comes with extra amenities.

Providing your phone number is optional when creating an account.

The tour guide offers optional historical anecdotes during the museum visit.

Adding a profile picture is optional, but it can help other users recognize you on the website.

Using a pencil or pen is optional when taking notes, but it is a matter of personal preference.

Completing the extra credit assignment is optional, but it can help improve your grade.

Bringing your own supplies to the art class is optional.

The dessert comes with an optional chocolate sauce.

Including a cover letter with your resume is optional for this job application.

Using a calculator is optional in this math class.