need answer fast

A second question on the survey said \"Do you think that adults who are at least 18 years old know best for themselves whether they should drink or not and that no law should interfere with the right to make this decision?" What type of bias is this most likely to cause? Select one: a. Selection bias b' Non-response bias c. Undercoverage Response bias Use the following for questions 2 to 4: Jeff wants to gure out the proportion of students at his university that support lowering the legal drinking age from 21 to 18. To answer this question, he plans to email 26 students and ask them whether they support lowering the age or not. To select the 26 students. Jeff uses the contact list in his email account, choosing the first person whose email address begins with A. the first person whose email address begins with B. etc. What is the target population of interest in this example? Select one: a. All students at Jeff's university. b' The students that Jeff emailed. c. All students at Jeff's university that are in. favor of lowering the legal drinking age. d' The proportion of students that Jefl emailed that are in favor of lowering the legal drinking age. What type of sample did Jeff take? Select one: a. Volunteer response sample b' Convenience sample c. Stratified sample d' Simple random sample