Answer:
Potential energy to kinetic energy, and total energy is conserved
Step-by-step explanation:
As we know that potential energy of the spring

so here we know
k = spring constant
x = stretch of spring
now we know that when spring is released from its compressed position then the potential energy of spring will convert into kinetic energy
Since there is no friction force or resistance force so here we can say that total energy is always conserved in it
So here correct answer will be
Potential energy to kinetic energy, and total energy is conserved