Which of the following may result in a biased poll?

A) a poll with a unrepresentative sample
B) a poll with a loaded question
C) a poll with a question specifically written to get a certain answer
D) All of these answers are correct.

Biased Poll

A survey that leads to skewed or unrepresentative results due to its design or the way questions are asked.

Unrepresentative Sample

A subset of a population that does not accurately reflect the demographics or characteristics of the whole population, leading to biased results.

Loaded Question

A question that contains a controversial or unjustified assumption, often used to trap the respondent into a particular answer.