[单选题]
What happens to the total relati tqk3,tr dy ap/ :nuh+.mtvu9fc;.4bp vistic energy of a io- n71cl8aqe speedy proton when its relativistic mass doubles?oq18cni7la -e
A. It doubles.
B. It more than doubles.
C. It less than doubles.
D. It must increase, but it is impossible to say by how much.
