Henry took a survey to find out what the favorite brand of hot dog was among people in the city. for his survey, he randomly chose people exiting a children's play. which statement is most likely true?

the survey could be biased because the people surveyed were chosen randomly.

the survey should be unbiased because the people leaving the play were representative of all people in the city.

the survey should be unbiased because the people were chosen randomly.

the survey could be biased because only people leaving a children's play were surveyed.