I am not sure but here is a guess I think it might be C- earth's magnetic field reverses
An active card is used in relation to computers and technology, it has the component of an internal battery and wouldn't be used without it. The active card can provide a usable range of up to 150 m distance. And this is the distance of how far that it could get.
Answer:
Latency
Explanation:
If the client connection is suboptimal it will create issues with speed
Thermal Energy I think would be the answer