Here is a potential survey question: "Studies have shown that consuming one alcoholic drink daily helps reduce heart disease. How many alcoholic drinks do you consume daily?" $($a$)$ Many pitfalls can be encountered when asking questions in a survey or experiment. $1.$ deliberate bias $2.$ unintentional bias $3.$ desire to please $4.$ asking the uninformed $5.$ unnecessary complexity $6.$ ordering of questions $7.$ confidentiality versus anonymity Which two of the seven pitfalls are most problematic for this question. $($Select all that apply.$)$ deliberate bias unintentional bias desire to please asking the uninformed unnecessary complexity ordering of questions confidentiality versus anonymity