Which of the Following Is Not a Principle of Interpretation

Which of the following is not a principle of interpretation of wills?

A) Words are construed according to the natural and ordinary meaning of words
B) Words are construed with reference to the subjective evidence of any parties intention
C) Words are construed in the light of any facts known or assumed to known by the relevant parties at the time the will was executed.
D) Words are construed in light of the overall purpose of the will.