Checkboxes is a closed-ended field type where people can select any number of answers from a list of choices.
The following limits apply when you create a Checkboxes field:
Each answer choice must be 150 characters or less.
The maximum number of answer choices you can add to a Checkboxes field depends on the overall number of fields on your form. Each answer choice counts as one field, so you need to be aware of overall field limit.