Hi, I have a question and I hope anyone could answer it:
A. A scalar must always be positive, but vectors can be positive, negative, or zero.
B. A scalar is specified with a single number, but a vector is specified using both a magnitude and a direction.
C. A scalar is a dimensionless number, while vectors are numbers that have dimensions.
D. Nothing—the terms “vector” and “scalar” are different names for the same thing.
E. Scalars have both a magnitude and a direction, but vectors have only a magnitude.