Sentence examples similar to submitting is optional from inspiring English sources

Submitting a creative portfolio is optional.

But Mr. Visconti said the proposal to alter the building was not submitted under the self-certification process, which is optional.

But this is optional since it is still acceptable to submit only one sample.

Optional data that can be submitted are: reference(s) to relevant publications and to clinical studies.

Their use is optional.

Sensitivity is optional.

Digitization is optional.

Sugar is optional.

Cutlery is optional.

(Power operation is optional).

Sex is optional".