Read the following paragraph and answer the question:

"Speed is defined as the distance traveled per unit time and is considered a scalar quantity, meaning it possesses only magnitude without any directional component. In contrast, velocity is a vector quantity, incorporating both magnitude and direction. While speed provides a measure of how fast an object is moving, velocity offers a more comprehensive description by specifying the object's rate of movement as well as the direction in which it is traveling."

Which of the following is a scalar quantity?