A school district consisting of three high schools wants to estimate the proportion of parents who would prefer a longer winter break so that they can travel to see family over the holidays. This is a fully online district so every household has an active and responsive email account. The school administrators decide to take a random sample of 100 parents from each of the three high schools, making a total sample of 300 parents. Each of the 300 parents are emailed a survey link asking "Would you like to have a longer winter break, which would result in a shorter summer break?" 27 parents respond to the survey, and from those responses there was overwhelming support for the change to a longer winter break to allow for family travel. type of bias could occur? Choose the best answer. What type of bias could occur? Choose the best answer. Undercoverage Non-response bias Voluntary response bias There is no bias because the sample represents the population of interest and the question was not misleading or confusing