Use evidence from the fact that an amphibian is cold-blooded to answer the following question. Choose from options. "Which can best be described as hibernation for most amphibians?"

Pick your answer from:
1). a brain dead frog in mud;
2). a frog napping for an hour in mud;
3). a frog burying itself in mud for months;
4). a frog sleeping for the night in mud;
3).