Picklist and Multi-picklist questions require answers to be entered.
If you added a question from the Questions tab under Registration Fees and Forms ...
Select the Answer Options tab.
Click Add New Answer Options.
Enter your first answer option in the Label column and copy it to the Value column. Continue to Add New Answer Options until you enter all the answer options.
You can specify the order in which the answers should appear, by entering the number under the Order column.
Click Save once you have entered all the answer options.
If you added the question from the Questions & Layout tab within the Registration Form...
Once you have added the question, scroll down to the Answers section.
Make the Default Answer your first option. Click on the line. Delete the words Default Answer and type your first answer option.
Click Add Another. A new line will open up. Enter your next answer option.
Continue to add your answers until you entered all options.