Have a good rest, you need to your energy for the tennis match this afternoon. A. have B. save C. ho

Have a good rest, you need to your energy for the tennis match this afternoon. A. have B. save C. hold D. get

The best answer is B. save.

The full sentence would be:
"Have a good rest, you need to save your energy for the tennis match this afternoon."

Explanation:

Save your energy means to conserve or store it for later use, which makes sense before a match.

The other options don’t fit idiomatically:

Have your energy – unnatural in this context.

Hold your energy – not a standard phrase.

Get your energy – possible, but doesn’t fit as naturally with "need to" before an event; "save" is much more common and appropriate here.