Which of the Following Is True About Tacit Knowledge

Which of the following is true about tacit knowledge?

A) It refers to feelings that influence the intuitive process.
B) It is automatic, involuntary, and almost effortless.
C) It refers to information gained through experience that is difficult to express and formalize.
D) It can easily be put into verbal words, written documents, or numerical reports and explained to others.
E) It tends to decrease with age.