Answer:
C,
Explanation:
The sand is just small rocks and pebbles broken down, we know that on a hot day rocks can heat up if left alone for long enough especially if they are dry.
B . , because I remember this
Fingerprints are still recoverable for long lengths of time, about 6 weeks, so you would still have the fingerprint ( no DNA profiling ) so you would likely be fine if it wasn't there for long.
