What is a difference between speed and time? (2 points)

a
Speed is the heat energy of an object, and time measures amounts in grams and kilograms.

b
Speed is the force required to move an object, and time measures amounts in Celsius, or Fahrenheit.

c
Speed measures distance over time, and time measures amounts in seconds, minutes, or hours.

d
Speed measures the time it takes to move a distance, and time measures amounts in kilometers per hour.