Final answer:
The vector provided in the options is velocity, which indicates both the speed and direction of motion. In the choices provided concerning vectors and scalars, option b (displacement, velocity, acceleration) contains two vectors and a scalar.
Step-by-step explanation:
The vector from the options provided is velocity. A vector is a quantity that possesses both magnitude and direction. For example, velocity describes how fast an object is moving and the direction in which it is moving. This makes velocity a vector, in contrast to speed, which does not include a direction and is therefore a scalar. Other examples of vectors are displacement and acceleration, whereas distance and speed are scalars.
Out of the given choices, b. displacement, velocity, acceleration contains two vectors (displacement and velocity) and a scalar (acceleration). In one-dimensional motion, vectors are typically represented with a plus or minus sign to indicate direction, such as left or right. In two dimensions, vectors are represented with arrows in a coordinate system which show both magnitude and direction.