Which One of the Following Statements Is True Concerning Scalar

Multiple Choice

Which one of the following statements is true concerning scalar quantities?

A) Scalar quantities must be represented by base units.
B) Scalar quantities have both magnitude and direction.
C) Scalar quantities can be added to vector quantities using rules of trigonometry.
D) Scalar quantities can be added to other scalar quantities using rules of trigonometry.
E) Scalar quantities can be added to other scalar quantities using rules of ordinary addition.