What causes algorithms to produce biased results?

A. the programmers are inexperienced
B. the dataset contains no data
C. the dataset is skewed in one direction
D. the programming language is wrong

C. the dataset is skewed in one direction

Bias in algorithms can occur when the dataset used to train the algorithm is not representative of the real-world population or is skewed in one direction. This can lead to the algorithm making inaccurate or unfair predictions or decisions, which can have negative impacts on certain groups of people.