Yes, you can set a maximum number of choices for your Multiple choice fields. In the form builder, click on the Multiple choice field. From the left side panel, go to Validation and from there you can set both minimum and maximum number of choices your respondents can select.
In order to keep things clear for your respondents, you can specify in the Instructions box of the field that only a certain number of options can be picked.
After reaching the maximum number allowed, your respondents will receive a warning message if they try to select another option.