Q: Fact 1: Platypus females lay their eggs in a burrow. Fact 2: Many species dig burrows in the ground. Given the two facts above, where do platypus females lay their eggs?

pick from the following.
1). swea;
2). tree;
3). bushes;
4). fields;
5). ground;
6). autumn;
7). plate;
8). holder;
The answer is:
5).