Which of the Following Is True of the Value of K

Multiple Choice

Which of the following is true of the value of k in the k-Nearest Neighbors algorithm?

A) The value of k is always taken as a constant and is equal to 1.
B) If the value of k is large, it drastically increases variability.
C) If the value k is very large, it introduces biases into the classification decisions.
D) If the value k is large, the classification of a record is very sensitive to the classification of the single record to which it is closest.