There are two types of questions: Single Select & Multiple Select.
Single Select Screener Question
Single Select questions only allow participants to select one choice. You can automatically qualify and disqualify people, depending on their answers.
Qualify
Disqualify
Multiple Select Screener Question
Multiple Select questions allow participants to select more than one choice. When it comes to multiple select questions, the "May Select" option exists. That comes in handy when you don't want to disqualify participants if they select a filler answer.
Qualify
May Select
Disqualify
Head here for an example of how to utilize the "may select" option to avoid biased questions.