[单选题]
In an elastic collision, if the momenrooe.8zkz 3,o tum is conserved, then 9jbzq:g)q5tfjy0 u4pwhich of the following statements is true about kinetic enpyzjqt bq9)f4:05jg u ergy?
A. Kinetic energy is also conserved.
B. Kinetic energy is gained.
C. Kinetic energy is lost.
D. none of the above
