What is one word that is neither an element or a principal and give me the specified definition

Which of the following best describes david's painting death of marat?

Jerome wants to photograph runners at a track meet. he wants his photographs to show motion. which type of setting will emphasize a blur of motion?

In areas where even the experts disagree; everyone has a right to his own opinion. i mean if answers aren’t given just like in lots of things; then it has to be just anyone’s opinion. is this dualism multiplicity relativism or commitment