Yes, you can. In your Form Editor, click on the Multiple choice field in your main view to open its Edit Field panel. Click next to Max no. of choices in order to type in the number of choices form users can make and you’re good to go.
You can specify in the Instructions box of the Multiple choice field that only a certain number of options can be picked, in order to keep things clear for form users. When users try to select one more option, after they have reached the maximum number allowed, they will get a warning message.